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id="h5126" role="button" aria-label="Filtered by Date" aria-expanded="false" aria-controls="d5126" aria-haspopup="true" href="javascript:" h="ID=SERP,5465.1"><span class="fs_label">Date</span><span class="sw_ddbk"></span> </a></span><div data-priority="2"><div class="toggle_item" id="ntf_newtabfil" role="button" aria-pressed="true" aria-disabled="false" tabindex="0" data-appns="SERP" data-k="6088.0"><div class="ntf_label toggle_label nt_tit" id="ntf_newtabfil_label">Open links in new tab</div><div class="nt_val toggle_ctrl"><div id="ntf_newtabfil_ctrl" class="ntf_img toggle_on toggle_img"><img role="presentation" class="rms_img" src="/rp/kFAqShRrnkQMbH6NYLBYoJ3lq9s.png" /></div></div></div></div></div></div><ol id="b_results" class=""><li class="b_algo b_algoBorder b_algoBigWiki b_algo_feedback" data-id iid><div Class="b_algo_group"><h2><a href="https://en.wikipedia.org/wiki/Version_control" h="ID=SERP,5164.1">Version control - Wikipedia</a></h2><div class="b_caption" role="contentinfo"><div class="b_attribution" u="0|5077|4553730965701523|Qtu6hS9FrDgWzB1vEiz_Ss0Zy7WYcwbg" tabindex="0"><cite>https://<strong>en.wikipedia.org</strong>/wiki/<strong>Version_control</strong></cite><span class="c_tlbxTrg"><span class="c_tlbxH" H="BASE:CACHEDPAGEDEFAULT" K="SERP,5165.1"></span></span></div></div><div id="WF_tabcontrol_18_806DD2" class="b_wikiRichcard"><div class="wikiRichcard_heroSection b_mText"><div class="b_clearfix b_overflow"><div class="b_floatR_img"></div><div id="pvc_274658707_24"><p class="b_paractl"><span title="Version control (also known as revision control, source control, and source code management) is the software engineering practice of controlling, organizing, and tracking different versions in history of computer files; primarily source code text files, but generally any type of file. Version control is a component of software configuration management. A version control system is a software tool that automates version control. Alternatively, version control is embedded as a feature of some systems such as word processors, spreadsheets, collaborative web docs, and content management systems, e.g., Wikipedia's page history. Version control includes viewing old versions and enables reverting a file to a previous version. ">Version control (also known as revision control, source control, and source code management) is <strong>the software engineering practice of controlling, organizing, and tracking different versions in history of computer files;</strong> primarily source code text files, but generally any type of file. Version control is a component of software configuration management. A version contro…</span></p><div class="sml inline" id="expitem_274658298_23" data-appns="SERP" data-k="6096.1" data-expl=""><a id="expitem_274658298_23_hit" class="b_mopexpref" data-exp="I;expitem_274658298_23;;0;;;Expansion;;0;0;expitem_274658298_23_hit;10;0;" href="javascript:void(0);" aria-label="Show more" role="button" aria-expanded="false"><span class="sw_plus cipa " width="16" height="16"></span><div class="expansionAccessibilityText" LessAltText="Less content will be shown above the current area of focus upon selection" MoreAltText="New content will be added above the current area of focus upon selection">New content will be added above the current area of focus upon selection</div></a></div></div><div class="b_hide" data-exp="H;expitem_274658298_23;;pvc_274658707_24;;;" data-exp-noani=""><p class="b_paractl">Version control (also known as revision control, source control, and source code management) is <strong>the software engineering practice of controlling, organizing, and tracking different versions in history of computer files;</strong> primarily source code text files, but generally any type of file. Version control is a component of software configuration management. A version control system is a software tool that automates version control. Alternatively, version control is embedded as a feature of some systems such as word processors, spreadsheets, collaborative web docs, and content management systems, e.g., Wikipedia's page history. Version control includes viewing old versions and enables reverting a file to a previous version. </p></div></div></div><div id="tabcontrol_18_806DD2" class="tab-container" data-wire="I;tab;; |B;a;;I|" data-appns="SERP" data-k="5824.2"><div class="tab-head HeroTab"><div id="tabcontrol_18_806DD2_navl" class="tab-navl" data-appns="SERP" data-k="6097.1"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" enable-background="new 0 0 16 16" width="16" height="40"><path class="sv_ch" d="M12.29.235c-.312-.313-.818-.313-1.131 0l-7.2 7.2c-.148.148-.234.355-.234.565 0 .21.086.417.234.566l7.2 7.2c.312.313.818.313 1.131 0 .313-.312.313-.818 0-1.131l-6.634-6.635 6.634-6.634c.313-.312.312-.819 0-1.131z" /></svg></div><div class="tab-menu tab-hasnav" style="width:544px"><ul id="tabcontrol_18_806DD2_menu" style="margin-left:0px;" role="tablist" data-dataurl=""><li data-dataurl="" id="tab_11_8062EE_head" data-nc="" data-nr="" class="b_dmtab tab-active" style=" width:66px;" data-w="66" data-ow="98" data-content="tab_11_8062EE" tabindex="0" role="tab" aria-controls="tab_11_8062EE" aria-selected="true" data-appns="SERP" data-k="5735.1">Overview</li><li data-dataurl="" id="tab_12_8064AA_head" data-nc="" data-nr="" class="b_dmtab" style=" width:51px;" data-w="51" data-ow="83" data-content="tab_12_8064AA" role="tab" aria-controls="tab_12_8064AA" aria-selected="false" data-appns="SERP" data-k="5746.1">History</li><li data-dataurl="" id="tab_13_8065E7_head" data-nc="" data-nr="" class="b_dmtab" style=" width:65px;" data-w="65" data-ow="97" data-content="tab_13_8065E7" role="tab" aria-controls="tab_13_8065E7" aria-selected="false" data-appns="SERP" data-k="5766.1">Structure</li><li data-dataurl="" id="tab_14_8067C1_head" data-nc="" data-nr="" class="b_dmtab" style=" width:152px;" data-w="152" data-ow="184" data-content="tab_14_8067C1" role="tab" aria-controls="tab_14_8067C1" aria-selected="false" data-appns="SERP" data-k="5779.1">Specialized strategies</li><li data-dataurl="" id="tab_15_8068E8_head" data-nc="" data-nr="" class="b_dmtab" style=" width:198px;" title="Source-management models" data-w="198" data-ow="230" data-content="tab_15_8068E8" role="tab" aria-controls="tab_15_8068E8" aria-selected="false" data-appns="SERP" data-k="5787.1">Source-management models</li><li data-dataurl="" id="tab_16_806B40_head" data-nc="" data-nr="" class="b_dmtab" style=" width:193px;" data-w="193" data-ow="225" data-content="tab_16_806B40" role="tab" aria-controls="tab_16_806B40" aria-selected="false" data-appns="SERP" data-k="5804.1">Distributed revision control</li><li data-dataurl="" id="tab_17_806C9E_head" data-nc="" data-nr="" class="b_dmtab" style=" width:97px;" data-w="97" data-ow="129" data-content="tab_17_806C9E" role="tab" aria-controls="tab_17_806C9E" aria-selected="false" data-appns="SERP" data-k="5812.1">Best practices</li></ul></div><div id="tabcontrol_18_806DD2_navr" class="tab-navr" data-appns="SERP" data-k="6098.1"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" enable-background="new 0 0 16 16" width="16" height="40"><path class="sv_ch" d="M3.735 1.366l6.634 6.634-6.634 6.634c-.313.313-.313.819 0 1.131.313.313.819.313 1.131 0l7.2-7.2c.148-.148.234-.355.234-.565 0-.21-.086-.417-.234-.566l-7.2-7.2c-.313-.313-.819-.313-1.131 0s-.313.82 0 1.132z" /></svg></div></div><div class="tab-content"><div id="tab_11_8062EE" data-appns="SERP" data-k="5735.2" role="tabpanel" aria-labelledby="tab_11_8062EE_head" data-priority=""><div id="pvc_274665916_26"><p class="b_paractl">As teams develop software, it is common for multiple versions of the same software to be deployed in different sites and for the developers to work simultaneously on updates. <a href="/search?q=Software%20bug%20wikipedia&form=WIKIRE" h="ID=SERP,5739.1">Bugs</a><span title=" or features of the software are often only present in certain versions (because of the fixing of some problems and the introduction of others as the program develops). Therefore, for the purposes of locating and fixing bugs, it is vitally important to be able to retrieve and run different versions of the software to determine in which version(s) the problem occurs. It may also be necessary to develop two versions of the software concurrently: for instance, where one version has bugs fixed, but no new features (">or features of the software are often only present in certain versions (because of the fixing of some problems and the introduction of others as the program develops). Therefore, for the pu…</span></p><div class="sml inline" id="expitem_274665867_25" data-appns="SERP" data-k="6099.1" data-expl=""><a id="expitem_274665867_25_hit" class="b_mopexpref" data-exp="I;expitem_274665867_25;;0;;;Expansion;;0;0;expitem_274665867_25_hit;10;0;" href="javascript:void(0);" aria-label="Show more" role="button" aria-expanded="false"><span class="sw_plus cipa " width="16" height="16"></span><div class="expansionAccessibilityText" LessAltText="Less content will be shown above the current area of focus upon selection" MoreAltText="New content will be added above the current area of focus upon selection">New content will be added above the current area of focus upon selection</div></a></div></div><div class="b_hide" data-exp="H;expitem_274665867_25;;pvc_274665916_26;;;" data-exp-noani=""><p class="b_paractl">As teams develop software, it is common for multiple versions of the same software to be deployed in different sites and for the developers to work simultaneously on updates. <a href="/search?q=Software%20bug%20wikipedia&form=WIKIRE" h="ID=SERP,5739.2">Bugs</a> or features of the software are often only present in certain versions (because of the fixing of some problems and the introduction of others as the program develops). Therefore, for the purposes of locating and fixing bugs, it is vitally important to be able to retrieve and run different versions of the software to determine in which version(s) the problem occurs. It may also be necessary to develop two versions of the software concurrently: for instance, where one version has bugs fixed, but no new features (<a href="/search?q=Branching%20(revision%20control)%20wikipedia&form=WIKIRE" h="ID=SERP,5740.1">branch</a>), while the other version is where new features are worked on (<a href="/search?q=Trunk%20(software)%20wikipedia&form=WIKIRE" h="ID=SERP,5741.1">trunk</a>). <br /><br/>At the simplest level, developers could simply retain multiple copies of the different versions of the program, and label them appropriately. This simple approach has been used in many large software projects. While this method can work, it is inefficient as many near-identical copies of the program have to be maintained. This requires a lot of self-discipline on the part of developers and often leads to mistakes. Since the code base is the same, it also requires granting read-write-execute permission to a set of developers, and this adds the pressure of someone managing permissions so that the code base is not compromised, which adds more complexity. Consequently, systems to automate some or all of the revision control process have been developed. This ensures that the majority of management of version control steps is hidden behind the scenes. <br /><br/><a href="https://en.wikipedia.org/wiki/Version_control#Overview" h="ID=SERP,5745.1">Read more on Wikipedia</a></p></div></div><div id="tab_12_8064AA" class="tab-hide" data-appns="SERP" data-k="5746.2" role="tabpanel" aria-labelledby="tab_12_8064AA_head" data-priority="2"><div id="pvc_274671679_28"><p class="b_paractl">IBM's OS/360 <a href="/search?q=Support%20programs%20for%20OS%2F360%20and%20successors%23IEBUPDTE%20wikipedia&form=WIKIRE" h="ID=SERP,5750.1">IEBUPDTE</a> software update tool dates back to 1962, arguably a precursor to version control system tools. Two source management and version control packages that were heavily used by IBM 360/370 installations were <a href="/search?q=The%20Librarian%20(version%20control%20system)%20wikipedia&form=WIKIRE" h="ID=SERP,5751.1">The Librarian</a> and <a href="/search?q=Panvalet%20wikipedia&form=WIKIRE" h="ID=SERP,5752.1">Panvalet</a>. </p><div class="sml inline" id="expitem_274671623_27" data-appns="SERP" data-k="6100.1" data-expl=""><a id="expitem_274671623_27_hit" class="b_mopexpref" data-exp="I;expitem_274671623_27;;0;;;Expansion;;0;0;expitem_274671623_27_hit;10;0;" href="javascript:void(0);" aria-label="Show more" role="button" aria-expanded="false"><span class="sw_plus cipa " width="16" height="16"></span><div class="expansionAccessibilityText" LessAltText="Less content will be shown above the current area of focus upon selection" MoreAltText="New content will be added above the current area of focus upon selection">New content will be added above the current area of focus upon selection</div></a></div></div><div class="b_hide" data-exp="H;expitem_274671623_27;;pvc_274671679_28;;;" data-exp-noani=""><p class="b_paractl">IBM's OS/360 <a href="/search?q=Support%20programs%20for%20OS%2F360%20and%20successors%23IEBUPDTE%20wikipedia&form=WIKIRE" h="ID=SERP,5750.2">IEBUPDTE</a> software update tool dates back to 1962, arguably a precursor to version control system tools. Two source management and version control packages that were heavily used by IBM 360/370 installations were <a href="/search?q=The%20Librarian%20(version%20control%20system)%20wikipedia&form=WIKIRE" h="ID=SERP,5751.2">The Librarian</a> and <a href="/search?q=Panvalet%20wikipedia&form=WIKIRE" h="ID=SERP,5752.2">Panvalet</a>. <br /><br/>A full system designed for source code control was started in 1972, <a href="/search?q=Source%20Code%20Control%20System%20wikipedia&form=WIKIRE" h="ID=SERP,5759.1">Source Code Control System</a> for the same system (OS/360). Source Code Control System's introduction, having been published on December 4, 1975, historically implied it was the first deliberate revision control system. <a href="/search?q=Revision%20Control%20System%20wikipedia&form=WIKIRE" h="ID=SERP,5760.1">RCS</a> followed just after, with its networked version <a href="/search?q=Concurrent%20Versions%20System%20wikipedia&form=WIKIRE" h="ID=SERP,5761.1">Concurrent Versions System</a>. The next generation after Concurrent Versions System was dominated by <a href="/search?q=Apache%20Subversion%20wikipedia&form=WIKIRE" h="ID=SERP,5762.1">Subversion</a>, followed by the rise of <a href="/search?q=Distributed%20revision%20control%20wikipedia&form=WIKIRE" h="ID=SERP,5763.1">distributed revision control</a> tools such as <a href="/search?q=Git%20wikipedia&form=WIKIRE" h="ID=SERP,5764.1">Git</a>. </p></div></div><div id="tab_13_8065E7" class="tab-hide" data-appns="SERP" data-k="5766.2" role="tabpanel" aria-labelledby="tab_13_8065E7_head" data-priority="2"><div id="pvc_274674318_30"><p class="b_paractl">Revision control manages changes to a set of data over time. These changes can be structured in various ways. <br /><br/><span title="Often the data is thought of as a collection of many individual items, such as files or documents, and changes to individual files are tracked. This accords with intuitions about separate files but causes problems when identity changes, such as during renaming, splitting or merging of files. Accordingly, some systems such as ">Often the data is thought of as a collection of many individual items, such as files or documents, and changes to individual files are tracked. This accords with intuitions about separate f…</span></p><div class="sml inline" id="expitem_274674280_29" data-appns="SERP" data-k="6101.1" data-expl=""><a id="expitem_274674280_29_hit" class="b_mopexpref" data-exp="I;expitem_274674280_29;;0;;;Expansion;;0;0;expitem_274674280_29_hit;10;0;" href="javascript:void(0);" aria-label="Show more" role="button" aria-expanded="false"><span class="sw_plus cipa " width="16" height="16"></span><div class="expansionAccessibilityText" LessAltText="Less content will be shown above the current area of focus upon selection" MoreAltText="New content will be added above the current area of focus upon selection">New content will be added above the current area of focus upon selection</div></a></div></div><div class="b_hide" data-exp="H;expitem_274674280_29;;pvc_274674318_30;;;" data-exp-noani=""><p class="b_paractl">Revision control manages changes to a set of data over time. These changes can be structured in various ways. <br /><br/>Often the data is thought of as a collection of many individual items, such as files or documents, and changes to individual files are tracked. This accords with intuitions about separate files but causes problems when identity changes, such as during renaming, splitting or merging of files. Accordingly, some systems such as <a href="/search?q=Git%20wikipedia&form=WIKIRE" h="ID=SERP,5768.1">Git</a>, instead consider changes to the data as a whole, which is less intuitive for simple changes but simplifies more complex changes. <br /><br/>When data that is under revision control is modified, after being retrieved by checking out, this is not in general immediately reflected in the revision control system (in the repository), but must instead be checked in or committed. A copy outside revision control is known as a "working copy". As a simple example, when editing a computer file, the data stored in memory by the editing program is the working copy, which is committed by saving. Concretely, one may print out a document, edit it by hand, and only later manually input the changes into a computer and save it. For source code control, the working copy is instead a copy of all files in a particular revision, generally stored locally on the developer's computer; in this case saving the file only changes the working co…<br /><br/><a href="https://en.wikipedia.org/wiki/Version_control#Structure" h="ID=SERP,5778.1">Read more on Wikipedia</a></p></div></div><div id="tab_14_8067C1" class="tab-hide" data-appns="SERP" data-k="5779.2" role="tabpanel" aria-labelledby="tab_14_8067C1_head" data-priority="2"><div id="pvc_274675990_32"><p class="b_paractl">Engineering revision control developed from formalized processes based on tracking revisions of early blueprints or <a href="/search?q=Whiteprint%20wikipedia&form=WIKIRE" h="ID=SERP,5781.1">bluelines</a> <span title=" . This system of control implicitly allowed returning to an earlier state of the design, for cases in which an engineering dead-end was reached in the development of the design. A revision table was used to keep track of the changes made. Additionally, the modified areas of the drawing were highlighted using revision clouds. ">. This system of control implicitly allowed returning to an earlier state of the design, for cases in which an engineering dead-end was reached in the development of the design. A revision table was used to keep track of the changes made. Additionally, the …</span></p><div class="sml inline" id="expitem_274675955_31" data-appns="SERP" data-k="6102.1" data-expl=""><a id="expitem_274675955_31_hit" class="b_mopexpref" data-exp="I;expitem_274675955_31;;0;;;Expansion;;0;0;expitem_274675955_31_hit;10;0;" href="javascript:void(0);" aria-label="Show more" role="button" aria-expanded="false"><span class="sw_plus cipa " width="16" height="16"></span><div class="expansionAccessibilityText" LessAltText="Less content will be shown above the current area of focus upon selection" MoreAltText="New content will be added above the current area of focus upon selection">New content will be added above the current area of focus upon selection</div></a></div></div><div class="b_hide" data-exp="H;expitem_274675955_31;;pvc_274675990_32;;;" data-exp-noani=""><p class="b_paractl">Engineering revision control developed from formalized processes based on tracking revisions of early blueprints or <a href="/search?q=Whiteprint%20wikipedia&form=WIKIRE" h="ID=SERP,5781.2">bluelines</a> . This system of control implicitly allowed returning to an earlier state of the design, for cases in which an engineering dead-end was reached in the development of the design. A revision table was used to keep track of the changes made. Additionally, the modified areas of the drawing were highlighted using revision clouds. <br /><br/><span class="b_promoteText">In Business and Law</span><br />Version control is widespread in business and law. Indeed, "contract redline" and "legal blackline" are some of the earliest forms of revision control, and are still employed in business and law with varying degrees of sophistication. The most sophisticated techniques are beginning to be used for the electronic tracking of changes to <a href="/search?q=CAD%20file%20wikipedia&form=WIKIRE" h="ID=SERP,5784.1">CAD files</a> (see <a href="/search?q=Product%20data%20management%20wikipedia&form=WIKIRE" h="ID=SERP,5785.1">product data management</a>), supplanting the "manual" electronic implementation of traditional revision control. </p></div></div><div id="tab_15_8068E8" class="tab-hide" data-appns="SERP" data-k="5787.2" role="tabpanel" aria-labelledby="tab_15_8068E8_head" data-priority="2"><div id="pvc_274677838_34"><p class="b_paractl">Traditional revision control systems use a centralized model where all the revision control functions take place on a shared <a href="/search?q=Server%20(computing)%20wikipedia&form=WIKIRE" h="ID=SERP,5789.1">server</a><span title=". If two developers try to change the same file at the same time, without some method of managing access the developers may end up overwriting each other's work. Centralized revision control systems solve this problem in one of two different "source management models": file locking and version merging. ">. If two developers try to change the same file at the same time, without some method of managing access the developers may end up overwriting each other's work. Centralized revision control systems solve this problem in one of two differ…</span></p><div class="sml inline" id="expitem_274677800_33" data-appns="SERP" data-k="6103.1" data-expl=""><a id="expitem_274677800_33_hit" class="b_mopexpref" data-exp="I;expitem_274677800_33;;0;;;Expansion;;0;0;expitem_274677800_33_hit;10;0;" href="javascript:void(0);" aria-label="Show more" role="button" aria-expanded="false"><span class="sw_plus cipa " width="16" height="16"></span><div class="expansionAccessibilityText" LessAltText="Less content will be shown above the current area of focus upon selection" MoreAltText="New content will be added above the current area of focus upon selection">New content will be added above the current area of focus upon selection</div></a></div></div><div class="b_hide" data-exp="H;expitem_274677800_33;;pvc_274677838_34;;;" data-exp-noani=""><p class="b_paractl">Traditional revision control systems use a centralized model where all the revision control functions take place on a shared <a href="/search?q=Server%20(computing)%20wikipedia&form=WIKIRE" h="ID=SERP,5789.2">server</a>. If two developers try to change the same file at the same time, without some method of managing access the developers may end up overwriting each other's work. Centralized revision control systems solve this problem in one of two different "source management models": file locking and version merging. <br /><br/><span class="b_promoteText">Atomic operations</span><br />An operation is atomic if the system is left in a consistent state even if the operation is interrupted. The commit operation is usually the most critical in this sense. Commits tell the revision control system to make a group of changes final, and available to all users. Not all revision control systems have atomic commits; Concurrent Versions System lacks this feature. <br /><br/><span class="b_promoteText">File locking</span><br />The simplest method of preventing "<a href="/search?q=Concurrent%20access%20wikipedia&form=WIKIRE" h="ID=SERP,5793.1">concurrent access</a>" problems involves <a href="/search?q=File%20locking%20wikipedia&form=WIKIRE" h="ID=SERP,5794.1">locking files</a> so that only one developer at a time has write access to the central "<a href="/search?q=Repository%20(version%20control)%20wikipedia&form=WIKIRE" h="ID=SERP,5795.1">repository</a>" copies of those files. Once one developer "checks out" a file, others can read that file, but no one else may change that file until that developer "checks in" the updated version (or cancels the checkout). <br /><br/>File locking has both merits and drawbacks. It can provide some protection against difficult merge conflicts when a user is making radical changes to many sections of a large file (or group of files…<br /><br/><a href="https://en.wikipedia.org/wiki/Version_control#Source-management_models" h="ID=SERP,5803.1">Read more on Wikipedia</a></p></div></div><div id="tab_16_806B40" class="tab-hide" data-appns="SERP" data-k="5804.2" role="tabpanel" aria-labelledby="tab_16_806B40_head" data-priority="2"><div id="pvc_274679916_36"><p class="b_paractl">Distributed revision control systems (DRCS) take a peer-to-peer approach, as opposed to the <a href="/search?q=Client–server%20model%20wikipedia&form=WIKIRE" h="ID=SERP,5808.1">client–server</a> approach of centralized systems. Rather than a single, central repository on which clients synchronize, each peer's working copy of the codebase is a <a href="/search?q=Good%20faith%20wikipedia&form=WIKIRE" h="ID=SERP,5809.1">bona-fide</a> repository. Distributed revision control conducts synchronization by exchanging <a href="/search?q=Patch%20(computing)%20wikipedia&form=WIKIRE" h="ID=SERP,5810.1">patches</a> <span title=" (change-sets) from peer to peer. This results in some important differences from a centralized system: ">(change …</span></p><div class="sml inline" id="expitem_274679879_35" data-appns="SERP" data-k="6104.1" data-expl=""><a id="expitem_274679879_35_hit" class="b_mopexpref" data-exp="I;expitem_274679879_35;;0;;;Expansion;;0;0;expitem_274679879_35_hit;10;0;" href="javascript:void(0);" aria-label="Show more" role="button" aria-expanded="false"><span class="sw_plus cipa " width="16" height="16"></span><div class="expansionAccessibilityText" LessAltText="Less content will be shown above the current area of focus upon selection" MoreAltText="New content will be added above the current area of focus upon selection">New content will be added above the current area of focus upon selection</div></a></div></div><div class="b_hide" data-exp="H;expitem_274679879_35;;pvc_274679916_36;;;" data-exp-noani=""><p class="b_paractl">Distributed revision control systems (DRCS) take a peer-to-peer approach, as opposed to the <a href="/search?q=Client–server%20model%20wikipedia&form=WIKIRE" h="ID=SERP,5808.2">client–server</a> approach of centralized systems. Rather than a single, central repository on which clients synchronize, each peer's working copy of the codebase is a <a href="/search?q=Good%20faith%20wikipedia&form=WIKIRE" h="ID=SERP,5809.2">bona-fide</a> repository. Distributed revision control conducts synchronization by exchanging <a href="/search?q=Patch%20(computing)%20wikipedia&form=WIKIRE" h="ID=SERP,5810.2">patches</a> (change-sets) from peer to peer. This results in some important differences from a centralized system: <br />• No canonical, reference copy of the codebase exists by default; only working copies.<br />• Common operations (such as commits, viewing history, and reverting changes) are fast, because there is no need to communicate with a central server. <br />Rather, communication is only necessary when pushing or pulling changes to or from other peers. <br />• Each working copy effectively functions as a remote backup of the codebase and of its change-history, providing inherent protection against data loss. </p></div></div><div id="tab_17_806C9E" class="tab-hide" data-appns="SERP" data-k="5812.2" role="tabpanel" aria-labelledby="tab_17_806C9E_head" data-priority="2"><div id="pvc_274682011_38"><p class="b_paractl">Following best practices is necessary to obtain the full benefits of version control. Best practice may vary by version control tool and the field to which version control is applied. The generally accepted best practices in <a href="/search?q=Software%20development%20wikipedia&form=WIKIRE" h="ID=SERP,5817.1">software development</a> include: making incremental, small, changes; making <a href="/search?q=Commit%20(version%20control)%20wikipedia&form=WIKIRE" h="ID=SERP,5818.1">commits</a><span title=" which involve only one task or fix -- a corollary to this is to commit only code which works and does not knowingly break existing functionality; utilizing branching to complete functionality before release; writing clear and descriptive commit messages, make what why and how clear in either the commit description or the code; and using a consistent branching strategy. Other best software development practices such as ">which involve only one task or fix -- a corollary to this is …</span></p><div class="sml inline" id="expitem_274681976_37" data-appns="SERP" data-k="6105.1" data-expl=""><a id="expitem_274681976_37_hit" class="b_mopexpref" data-exp="I;expitem_274681976_37;;0;;;Expansion;;0;0;expitem_274681976_37_hit;10;0;" href="javascript:void(0);" aria-label="Show more" role="button" aria-expanded="false"><span class="sw_plus cipa " width="16" height="16"></span><div class="expansionAccessibilityText" LessAltText="Less content will be shown above the current area of focus upon selection" MoreAltText="New content will be added above the current area of focus upon selection">New content will be added above the current area of focus upon selection</div></a></div></div><div class="b_hide" data-exp="H;expitem_274681976_37;;pvc_274682011_38;;;" data-exp-noani=""><p class="b_paractl">Following best practices is necessary to obtain the full benefits of version control. Best practice may vary by version control tool and the field to which version control is applied. The generally accepted best practices in <a href="/search?q=Software%20development%20wikipedia&form=WIKIRE" h="ID=SERP,5817.2">software development</a> include: making incremental, small, changes; making <a href="/search?q=Commit%20(version%20control)%20wikipedia&form=WIKIRE" h="ID=SERP,5818.2">commits</a> which involve only one task or fix -- a corollary to this is to commit only code which works and does not knowingly break existing functionality; utilizing branching to complete functionality before release; writing clear and descriptive commit messages, make what why and how clear in either the commit description or the code; and using a consistent branching strategy. Other best software development practices such as <a href="/search?q=Code%20review%20wikipedia&form=WIKIRE" h="ID=SERP,5819.1">code review</a> and automated <a href="/search?q=Regression%20testing%20wikipedia&form=WIKIRE" h="ID=SERP,5820.1">regression testing</a> may assist in the following of version control best practices. </p></div></div></div></div><div class="wiki_attr b_divdef"><a href="https://en.wikipedia.org/wiki/Version_control" h="ID=SERP,5822.1">Wikipedia</a><span> · Text under <a href="http://creativecommons.org/licenses/by-sa/3.0/" h="ID=SERP,5823.1">CC-BY-SA license</a></span></div></div></div><div class="b_gobig_feedback"><div id="fdbk_thmb39" class="fdbk_thmb_root " data-priority="2" aria-live="polite"><div id="fdbk_emotion39" class="fdbk_emotion"></div><span id="fdbtext_39" class="fdbtext">Feedback</span><a id="thumb_t39" class="thumb_y " role="button" aria-label="Feedback Like" href="javascript:void(0)" h="ID=SERP,6107.1"></a><a id="thumb_f39" class="thumb_n " role="button" aria-label="Feedback Dislike" href="javascript:void(0)" h="ID=SERP,6108.1"></a><div id="thumbUpTips39" class="fdbk_hide fdbtext"><span>Thanks!</span><a id="thumb_tum39" role="button" aria-label="Tell us more" href="javascript:void(0)" h="ID=SERP,6109.1">Tell us more</a></div></div></div></li><li class="b_algo" data-id iid><div class="b_tpcn"><a class="tilk" aria-label="Atlassian" href="https://www.atlassian.com/git/tutorials/what-is-version-control" h="ID=SERP,5188.1"><div class="tpic"><div class="wr_fav" data-priority="2"><div class="cico siteicon" style="width:32px;height:32px;"><div class="rms_iac" style="height:32px;width:32px;" data-height="32" data-width="32" data-alt="Global web icon" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.abae0999-2c0a-487e-b351-d9347dcadf17&w=32&h=32&qlt=91&pcl=fffffa&o=6&pid=1.2"></div></div></div></div><div class="tptxt"><div class="tptt">Atlassian</div><div class="tpmeta"><div class="b_attribution" u="1|5078|4682103252746057|6jkbYmhK3d5RLNUoXZ364e4b5tS_JeFV" tabindex="0"><cite>https://www.atlassian.com/git/tutorials/<strong>what-is-version-control</strong></cite><span class="c_tlbxTrg"><span class="c_tlbxH" H="BASE:CACHEDPAGEDEFAULT" K="SERP,5189.1"></span><span class="c_tlbxH" H="BASE:GENERATIVECAPTIONSHINTSIGNAL" K="SERP,5194.1"></span></span></div></div></div></a></div><h2><a href="https://www.atlassian.com/git/tutorials/what-is-version-control" h="ID=SERP,5188.2">What is version control | Atlassian Git Tutorial</a></h2><div class="b_caption" role="contentinfo"><div class="b_snippet"><p class="b_lineclamp2">Learn how version control systems help software teams manage changes to source code over time. Find out the benefits of using Git, a popular distributed version control tool, and how to …</p></div><div Class="sa_uc"><ul class="b_vList b_divsec"><li class="b_annooverride" data-priority=><div class="hozdl_car" carouselid="0_808ECE" data-priority="2"><div id="slideexp0_808ECEc" class="b_slideexp" data-partnerInfo="" data-wire="I;slideexp_init;; |B;select;;I|F;selected;;O|F;active;;O|" data-control-id="slideexp0_808ECE" data-appns="SERP" data-k="5841.1" data-stk=""><div class="b_overlay"><div id="slideexp0_808ECEchevrons_prevbtn" class="btn disabled prev ltr rounded bld" data-dir="" role="button" aria-label="Click to scroll left" aria-hidden="true"><div class="bg"><span></span></div><div class="vcac"><div style="height: 32px; margin-top: -16px;"><div class="cr"><div></div></div></div></div></div><div id="slideexp0_808ECEchevrons_nextbtn" class="btn disabled next ltr rounded bld" data-dir="" role="button" aria-label="Click to scroll right" aria-hidden="true"><div class="bg"><span></span></div><div class="vcac"><div style="height: 32px; margin-top: -16px;"><div class="cr"><div></div></div></div></div></div><div class="b_slidesContainer"><div class="b_viewport"><div class="b_slidebar" id="slideexp0_808ECE" role="list" aria-label="Please use arrow keys to navigate"><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="5835.1" data-tag style tabindex data-mini role="listitem"><a href="https://www.atlassian.com/git/tutorials/rewriting-history" h="ID=SERP,5829.1">Rewriting History</a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="5836.1" data-tag style tabindex data-mini role="listitem"><a href="https://www.atlassian.com/git/tutorials/what-is-git" h="ID=SERP,5830.1">What is Git</a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="5837.1" data-tag style tabindex data-mini role="listitem"><a href="https://www.atlassian.com/git/tutorials/migrating-migrate" h="ID=SERP,5831.1">Migrate</a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="5838.1" data-tag style tabindex data-mini role="listitem"><a href="https://www.atlassian.com/git/tutorials/migrating-share" h="ID=SERP,5832.1">Share</a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="5839.1" data-tag style tabindex data-mini role="listitem"><a href="https://www.atlassian.com/git/tutorials/gitk" h="ID=SERP,5833.1">GitK</a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="5840.1" data-tag style tabindex data-mini role="listitem"><a href="https://www.atlassian.com/git/tutorials/syncing" h="ID=SERP,5834.1">Syncing</a></div></div></div></div></div></div></div></li></ul></div></div></li><li class="b_algo" data-id iid><div class="b_tpcn"><a class="tilk" aria-label="GeeksForGeeks" href="https://www.geeksforgeeks.org/version-control-systems/" h="ID=SERP,5226.1"><div class="tpic"><div class="wr_fav" data-priority="2"><div class="cico siteicon" style="width:32px;height:32px;"><div class="rms_iac" style="height:32px;width:32px;" data-height="32" data-width="32" data-alt="Global web icon" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.84941d09-8340-44da-85bf-a6c1e157f2f2&w=32&h=32&qlt=92&pcl=fffffa&o=6&pid=1.2"></div></div></div></div><div class="tptxt"><div class="tptt">GeeksForGeeks</div><div class="tpmeta"><div class="b_attribution" u="2|5079|4570807757136881|FBtjCbjk1cIekGtNFS_svVRPrxNrdhTG" tabindex="0"><cite>https://www.geeksforgeeks.org/<strong>version</strong> …</cite><span class="c_tlbxTrg"><span class="c_tlbxH" H="BASE:CACHEDPAGEDEFAULT" K="SERP,5227.1"></span><span class="c_tlbxH" H="BASE:GENERATIVECAPTIONSHINTSIGNAL" K="SERP,5232.1"></span></span></div></div></div></a></div><div class="b_imgcap_altitle b_imgcap_nosc"><div class="b_imagePair square_mp reverse b_clearfix"><div class="inner"><div><div class="rms_iac" style="height:80px;width:80px;" data-data-priority="2" data-height="80" data-width="80" data-class="b_circleImage b_ci_image_overlay b_onfaimg rms_img" data-fdopt="False" data-data-overlaylink="/images/search?view=detailV2&ccid=TmsTWIT6&id=96D939EF8C3250A2DBA9E3A4760E4EDC71529815&thid=OIP.TmsTWIT69CRR9_-lKecjpQAAAA&mediaurl=https://media.geeksforgeeks.org/wp-content/uploads/20220620184447/Untitleddesign4-300x210.png&q=version+control&ck=ACFE9FF990D607713A55E8CBCA4A6F7E&idpp=rc&idpview=singleimage&form=rc2idp" data-aria-hidden="true" data-title="Explore this image" data-src="//th.bing.com/th?id=OIP.TmsTWIT69CRR9_-lKecjpQAAAA&w=80&h=80&c=1&vt=10&bgcl=82f529&r=0&o=6&pid=5.1"></div><div class="b_greyBackgroundModal"></div></div></div><h2><a href="https://www.geeksforgeeks.org/version-control-systems/" h="ID=SERP,5226.2">Version Control Systems - GeeksforGeeks</a></h2><p class="b_lineclamp3"><span class="news_dt">Jun 29, 2022</span> · Learn what version control systems are, why they are important, and how they work. Compare local, centralized, and distributed version control systems with examples and benefits.</p></div></div><div class="b_caption b_rich" role="contentinfo"></div><div rpPositionName="rpPositionName"><div class="batg"><a class="batgil" href="https://www.geeksforgeeks.org/version-control-systems/" h="ID=SERP,5226.3"><div class="tltg ">Tags:</div><div class="tltg ">What Is...</div><div class="tltg ">Revision control</div><div class="tltg ">Source Control</div><div class="tltg ">Version Control Systems</div></a></div><div class="bats"></div></div></li><li class="b_ans b_mop" data-tag data-partnerTag data-id h="SERP,5859.1"><div class="b_sideBleed b_topBleed b_bottomBleed"><div class="rqnaContainerwithfeedback df_alaskcarousel rqnafbUlWrapper rqnASCWrapper ansTtlUndrlnWrapper" data-fbhlsel=".rqnaContainerwithfeedback"><div id="df_listaa" class=""><div></div><div class="b_vPanel"><div><div class="df_hd"><div class="b_traits b_primtxt">People also ask</div></div></div><div><div id="relatedQnAListDisplay" class="hybridAnsWrapper hybridAnsWrapper2 hybridHeightWrapper" data-priority=""><div class="openans_gradient_div"></div><div id="slideexp1_833232c" class="b_slideexp" data-partnerInfo="" data-wire="I;slideexp_init;; |B;select;;I|F;selected;;O|F;active;;O|" data-control-id="slideexp1_833232" data-appns="SERP" data-k="6117.1" data-stk=""><div class="b_overlay"><div id="slideexp1_833232chevrons_prevbtn" class="btn disabled prev ltr rounded bld" data-dir="" role="button" aria-label="Click to scroll left" aria-hidden="true"><div class="bg"><span></span></div><div class="vcac"><div style="height: 32px; margin-top: -16px;"><div class="cr"><div></div></div></div></div></div><div id="slideexp1_833232chevrons_nextbtn" class="btn next ltr rounded bld" data-dir="" role="button" aria-label="Click to scroll right" aria-hidden="false"><div class="bg"><span></span></div><div class="vcac"><div style="height: 32px; margin-top: -16px;"><div class="cr"><div></div></div></div></div></div><div class="b_slidesContainer"><div class="b_viewport"><div class="b_slidebar" id="slideexp1_833232" role="list" aria-label="Please use arrow keys to navigate"><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="6111.1" data-tag style tabindex data-mini role="listitem"><a class="df_alsocon_link" href="https://en.wikipedia.org/wiki/Version_control" h="ID=SERP,5863.1"><div class="df_alsoAskCard rqnaAnsCWrapper df_vt" data-tag="RelatedQnA.Item" data-query="What is version control?" data-IID="SERP.5860" data-ParentIID="SERP.5861"><div class="df_qnacontent"><div class="df_qntextwithicn"><div class="df_qntext">What is version control?</div></div><span class="df_alsocon b_primtxt HitHighlightWrapper " data-tag="RelatedQnA.ItemDetails">Version control includes <strong>viewing old versions and enables reverting a file to a previous version</strong>. As teams develop software, it is common for multiple versions of the same software to be deployed in different sites and for the developers to work simultaneously on updates.</span></div><div class="df_ansatb df_ansfontlghybrid"><div class="qna_algo df_qna_algo"><div class="b_algo"><h2><span class="">Version control - Wikipedia</span></h2></div><div class="b_attribution b_clearfix qfavc"><div class="b_imagePair"><div class="cico" style="width:16px;height:16px;"><div class="rms_iac" style="height:16px;width:16px;" data-height="16" data-width="16" data-role="presentation" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.9d837793-b21b-4809-aceb-f60f4a0b6408&w=16&h=16&c=7&o=6&pid=1.7"></div></div><div><div class="qna_attr"><cite>en.wikipedia.org</cite></div></div></div></div></div></div></div></a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="6112.1" data-tag style tabindex data-mini role="listitem"><a class="df_alsocon_link" href="https://about.gitlab.com/topics/version-control/" h="ID=SERP,5868.1"><div class="df_alsoAskCard rqnaAnsCWrapper df_vt" data-tag="RelatedQnA.Item" data-query="What are the three most popular version control tools?" data-IID="SERP.5865" data-ParentIID="SERP.5866"><div class="df_qnacontent"><div class="df_qntextwithicn"><div class="df_qntext">What are the three most popular version control tools?</div></div><span class="df_alsocon b_primtxt HitHighlightWrapper " data-tag="RelatedQnA.ItemDetails">The three most well-known version control tools are <strong>Git, Subversion, and Mercurial</strong>. Git is the most popular option and has become synonymous with 'source code management'.</span></div><div class="df_ansatb df_ansfontlghybrid"><div class="qna_algo df_qna_algo"><div class="b_algo"><h2><span class="">What is version control? - GitLab</span></h2></div><div class="b_attribution b_clearfix qfavc"><div class="b_imagePair"><div class="cico" style="width:16px;height:16px;"><div class="rms_iac" style="height:16px;width:16px;" data-height="16" data-width="16" data-role="presentation" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.91f09ba4-7022-42c5-beeb-3f3b815fe585&w=16&h=16&c=7&o=6&pid=1.7"></div></div><div><div class="qna_attr"><cite>about.gitlab.com</cite></div></div></div></div></div></div></div></a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="6113.1" data-tag style tabindex data-mini role="listitem"><a class="df_alsocon_link" href="https://www.atlassian.com/git/tutorials/what-is-version-control" h="ID=SERP,5873.1"><div class="df_alsoAskCard rqnaAnsCWrapper df_vt" data-tag="RelatedQnA.Item" data-query="What makes a good version control system?" data-IID="SERP.5870" data-ParentIID="SERP.5871"><div class="df_qnacontent"><div class="df_qntextwithicn"><div class="df_qntext">What makes a good version control system?</div></div><span class="df_alsocon b_primtxt HitHighlightWrapper " data-tag="RelatedQnA.ItemDetails">A good version control system <strong>facilitates a smooth and continuous flow of changes to the code</strong> without resorting to file locking, which can block the progress of other developers.</span></div><div class="df_ansatb df_ansfontlghybrid"><div class="qna_algo df_qna_algo"><div class="b_algo"><h2><span class="">What is version control | Atlassian Git Tutorial</span></h2></div><div class="b_attribution b_clearfix qfavc"><div class="b_imagePair"><div class="cico" style="width:16px;height:16px;"><div class="rms_iac" style="height:16px;width:16px;" data-height="16" data-width="16" data-role="presentation" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.abae0999-2c0a-487e-b351-d9347dcadf17&w=16&h=16&c=7&o=6&pid=1.7"></div></div><div><div class="qna_attr"><cite>atlassian.com</cite></div></div></div></div></div></div></div></a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="6114.1" data-tag style tabindex data-mini role="listitem"><a class="df_alsocon_link" href="https://blog.logrocket.com/product-management/version-control-systems-definition-types/" h="ID=SERP,5878.1"><div class="df_alsoAskCard rqnaAnsCWrapper df_vt" data-tag="RelatedQnA.Item" data-query="What is the difference between local version control and Central version control?" data-IID="SERP.5875" data-ParentIID="SERP.5876"><div class="df_qnacontent"><div class="df_qntextwithicn"><div class="df_qntext">What is the difference between local version control and Central version control?</div></div><span class="df_alsocon b_primtxt HitHighlightWrapper " data-tag="RelatedQnA.ItemDetails">The main difference between <strong>local and central version control</strong> lies in where changes are stored. In local version control, changes are stored locally in the files before being pushed to a single version of code in a database. In contrast, central version control stores changes in a central server, making it easier to manage and retrieve changes.</span></div><div class="df_ansatb df_ansfontlghybrid"><div class="qna_algo df_qna_algo"><div class="b_algo"><h2><span class="">What is version control? Definition, types, systems and tools</span></h2></div><div class="b_attribution b_clearfix qfavc"><div class="b_imagePair"><div class="cico" style="width:16px;height:16px;"><div class="rms_iac" style="height:16px;width:16px;" data-height="16" data-width="16" data-role="presentation" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.a2989bc3-f98b-4e42-ae80-dec8b914a147&w=16&h=16&c=7&o=6&pid=1.7"></div></div><div><div class="qna_attr"><cite>blog.logrocket.com</cite></div></div></div></div></div></div></div></a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="6115.1" data-tag style tabindex data-mini role="listitem"><a class="df_alsocon_link" href="https://www.atlassian.com/git/tutorials/what-is-version-control" h="ID=SERP,5883.1"><div class="df_alsoAskCard rqnaAnsCWrapper df_vt" data-tag="RelatedQnA.Item" data-query="What is a version control system (VCS)?" data-IID="SERP.5880" data-ParentIID="SERP.5881"><div class="df_qnacontent"><div class="df_qntextwithicn"><div class="df_qntext">What is a version control system (VCS)?</div></div><span class="df_alsocon b_primtxt HitHighlightWrapper " data-tag="RelatedQnA.ItemDetails">A <strong>Version Control System (VCS)</strong> is a tool that helps manage changes to your code over time. VCS are also known as Source Code Management (SCM) tools or Revision Control Systems (RCS). One of the most popular VCS tools is Git, which is a Distributed VCS, also known as a DVCS.</span></div><div class="df_ansatb df_ansfontlghybrid"><div class="qna_algo df_qna_algo"><div class="b_algo"><h2><span class="">What is version control | Atlassian Git Tutorial</span></h2></div><div class="b_attribution b_clearfix qfavc"><div class="b_imagePair"><div class="cico" style="width:16px;height:16px;"><div class="rms_iac" style="height:16px;width:16px;" data-height="16" data-width="16" data-role="presentation" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.abae0999-2c0a-487e-b351-d9347dcadf17&w=16&h=16&c=7&o=6&pid=1.7"></div></div><div><div class="qna_attr"><cite>atlassian.com</cite></div></div></div></div></div></div></div></a></div><div class="slide" data-dataurl data-rinterval data-appns="SERP" data-k="6116.1" data-tag style tabindex data-mini role="listitem"><a class="df_alsocon_link" href="https://about.gitlab.com/topics/version-control/" h="ID=SERP,5888.1"><div class="df_alsoAskCard rqnaAnsCWrapper df_vt" data-tag="RelatedQnA.Item" data-query="What are the different types of version control systems?" data-IID="SERP.5885" data-ParentIID="SERP.5886"><div class="df_qnacontent"><div class="df_qntextwithicn"><div class="df_qntext">What are the different types of version control systems?</div></div><span class="df_alsocon b_primtxt HitHighlightWrapper " data-tag="RelatedQnA.ItemDetails">The two main types of version control systems are <strong>centralized and distributed</strong>. Centralized systems store files in a central repository, while distributed systems store files across multiple repositories. Other less common types include lock-based and optimistic.</span></div><div class="df_ansatb df_ansfontlghybrid"><div class="qna_algo df_qna_algo"><div class="b_algo"><h2><span class="">What is version control? - GitLab</span></h2></div><div class="b_attribution b_clearfix qfavc"><div class="b_imagePair"><div class="cico" style="width:16px;height:16px;"><div class="rms_iac" style="height:16px;width:16px;" data-height="16" data-width="16" data-role="presentation" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.91f09ba4-7022-42c5-beeb-3f3b815fe585&w=16&h=16&c=7&o=6&pid=1.7"></div></div><div><div class="qna_attr"><cite>about.gitlab.com</cite></div></div></div></div></div></div></div></a></div></div></div></div></div></div></div></div></div></div><div class="fbans"><div class="b_footnote"><a id="fdbkans_0" class="hlig" target="_blank" data-fbhlsel=".rqnaContainerwithfeedback" role="button" href="javascript:void(0)" h="ID=SERP,6124.1">Feedback</a></div></div></div></div></li><li class="b_algo" data-id iid><div class="b_tpcn"><a class="tilk" aria-label="Git" href="https://git-scm.com/book/en/v2/Getting-Started-About-Version-Control" h="ID=SERP,5255.1"><div class="tpic"><div class="wr_fav" data-priority="2"><div class="cico siteicon" style="width:32px;height:32px;"><div class="rms_iac" style="height:32px;width:32px;" data-height="32" data-width="32" data-alt="Global web icon" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.41a3726a-404b-4a69-a7d8-22611d9b240a&w=32&h=32&qlt=93&pcl=fffffa&o=6&pid=1.2"></div></div></div></div><div class="tptxt"><div class="tptt">Git</div><div class="tpmeta"><div class="b_attribution" u="3|5080|4792913405163448|FNYjLSvCsSaDkKTH_rQHIY5ktvThiYdk" tabindex="0"><cite>https://git-scm.com/book/en/v2/Getting-…</cite><span class="c_tlbxTrg"><span class="c_tlbxH" H="BASE:CACHEDPAGEDEFAULT" K="SERP,5256.1"></span><span class="c_tlbxH" H="BASE:GENERATIVECAPTIONSHINTSIGNAL" K="SERP,5261.1"></span></span></div></div></div></a></div><div class="b_imgcap_altitle b_imgcap_nosc"><div class="b_imagePair square_mp reverse b_clearfix"><div class="inner"><div><div class="rms_iac" style="height:80px;width:80px;" data-data-priority="2" data-height="80" data-width="80" data-class="b_circleImage b_ci_image_overlay b_onfaimg rms_img" data-fdopt="False" data-data-overlaylink="/images/search?view=detailV2&ccid=ufa7HM5h&id=D62C9D9B47837E1339C90BF623A6B938E452998D&thid=OIP.ufa7HM5haX_GBgy8cT8sbgHaI3&mediaurl=https://git-scm.com/book/en/v2/images/distributed.png&q=version+control&ck=E8897F49400B6C91E007DEB86FA8A8CA&idpp=rc&idpview=singleimage&form=rc2idp" data-aria-hidden="true" data-title="Explore this image" data-src="//th.bing.com/th?id=OIP.ufa7HM5haX_GBgy8cT8sbgHaI3&w=80&h=80&c=1&vt=10&bgcl=a8936c&r=0&o=6&pid=5.1"></div><div class="b_greyBackgroundModal"></div></div></div><h2><a href="https://git-scm.com/book/en/v2/Getting-Started-About-Version-Control" h="ID=SERP,5255.2">Git - About Version Control</a></h2><p class="b_lineclamp3">Learn what version control is and why you should use it. 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Compare centralized and distributed version control systems, and explore the main tools such as Git, …</p></div></div><div class="b_caption b_rich" role="contentinfo"></div><div rpPositionName="rpPositionName"><div class="batg"><a class="batgil" href="https://about.gitlab.com/topics/version-control/" h="ID=SERP,5369.3"><div class="tltg ">Tags:</div><div class="tltg ">What Is...</div><div class="tltg ">Revision control</div><div class="tltg ">Source Control</div><div class="tltg ">Version Control</div></a></div><div class="bats"></div></div></li><li class="b_algo" data-id iid><div class="b_tpcn"><a class="tilk" aria-label="Microsoft Learn" href="https://learn.microsoft.com/en-us/devops/develop/git/what-is-version-control" h="ID=SERP,5395.1"><div class="tpic"><div class="wr_fav" data-priority="2"><div class="cico siteicon" style="width:32px;height:32px;"><div class="rms_iac" style="height:32px;width:32px;" data-height="32" data-width="32" data-alt="Global web icon" data-class="rms_img" data-src="//th.bing.com/th?id=ODLS.d976d44a-033b-43bd-a62d-bf2453d2891b&w=32&h=32&qlt=98&pcl=fffffa&o=6&pid=1.2"></div></div></div></div><div class="tptxt"><div class="tptt">Microsoft Learn</div><div class="tpmeta"><div class="b_attribution" u="8|5085|4542680014851565|nw7SoOtK64ERxYaaQpLmGWVgfcXMlazo" tabindex="0"><cite>https://learn.microsoft.com/.../devops/develop/git/what-is-<strong>version-co</strong>…</cite><span class="c_tlbxTrg"><span class="c_tlbxH" H="BASE:CACHEDPAGEDEFAULT" K="SERP,5396.1"></span><span class="c_tlbxH" H="BASE:GENERATIVECAPTIONSHINTSIGNAL" K="SERP,5401.1"></span></span></div></div></div></a></div><h2><a href="https://learn.microsoft.com/en-us/devops/develop/git/what-is-version-control" h="ID=SERP,5395.2">What is version control? - Azure DevOps | Microsoft Learn</a></h2><div class="b_caption" role="contentinfo"><p class="b_lineclamp2"><span class="news_dt">Nov 28, 2022</span> · Learn how version control systems manage code changes and snapshots over time. 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stop-opacity="0.01"/></linearGradient><radialGradient id="radgrad2" cx="0" cy="0" r="1" gradientUnits="userSpaceOnUse" gradientTransform="translate(475.578 104.296) rotate(-176.703) scale(68.4249 98.2319)"><stop stop-color="#09263F"/><stop offset="1" stop-color="#09263F" stop-opacity="0.01"/></radialGradient><clipPath id="cliparea"><rect width="472" height="102" fill="white"/></clipPath></defs></svg><p class="spl_logoheader_ttl"><span class="l_ecrd_txt_heros">Version control</span></p><p class="spl_logoheader_sbttl">Software engineering practice</p></div><div class="spl_logoheader_desc"><div><a class=" l_ecrd_txt_lnk b_ignbt l_ecrd_txt_hover" Title="en.wikipedia.org" aria-describedby="_Id" hover-data="-" href="https://en.wikipedia.org/wiki/Version_control" h="ID=SERP,6039.1"><p><span class="l_ecrd_txt_pln">Version control is the software engineering practice of controlling, organizing, and tracking different versions in history of computer files; primarily source code text files, but generally any type …</span></p></a></div></div></div><div class="l_ecrd_webicons_with_title_Single"><div class="l_ecrd_webicons_with_title_SingleWrapper"><div class="l_ecrd_webicon_module_item" style="width:28px;"><a title="Wikipedia" href="https://en.wikipedia.org/wiki/Version_control" h="ID=SERP,6041.1"><div class="sp-webicons28 WIKI"><svg viewBox="0 0 40 40" xmlns="http://www.w3.org/2000/svg"><rect width="40" height="40" fill="white"/><path fill-rule="evenodd" d="M37.766 9.128c0 .128-.041.244-.119.35s-.166.156-.263.156c-.778.075-1.419.325-1.913.753s-1.006 1.241-1.534 2.441l-8.062 18.169c-.053.169-.2.253-.444.253-.191 0-.338-.084-.444-.253l-4.522-9.456-5.2 9.456c-.106.169-.253.253-.444.253-.231 0-.384-.084-.459-.253L6.441 12.828c-.494-1.128-1.016-1.916-1.566-2.362s-1.312-.725-2.291-.831c-.084 0-.166-.044-.237-.134a.46.46 0 0 1-.113-.306c0-.297.084-.444.253-.444l2.216.094 2.022.097 2.278-.097 2.434-.094c.169 0 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0 .222.125.222.378z" fill="#000"/></svg></div></a></div><a class="l_ecrd_webicon_txtside" href="https://en.wikipedia.org/wiki/Version_control" h="ID=SERP,6042.1">Wikipedia</a></div></div></div><div class="lite-entcard-blk l_ecrd_bkg_hlt" id="l_ecrd_blk_3_QnA"><div class="l_ecrd_c2 l_ecrd_c2_fct_l"><div class="l_ecrd_c2_img"><div class="cico" style="width:127px;height:90px;"><a title="Image of Version control" href="/images/search?q=Version+control+database+RCS&FORM=KCFIMM&id=ce902d762e60c5fc92977143e087c99c" h="ID=SERP,6043.1"><img height="90" width="127" data-src-hq="/th?id=OSK.4e6b135884faf42451f7ffa529e723a5&w=127&h=90&o=6&pid=SANGAM" alt="Image of Version control" data-priority="2" id="emb1824BE71" class="rms_img" src="/th?id=OSK.4e6b135884faf42451f7ffa529e723a5&w=127&h=90&qlt=30&o=6&pid=SANGAM" /></a></div></div><div class="l_ecrd_c2_fct1"><div class="l_ecrd_hov l_ecrd_hovblk_3_7" id="l_ecrd_hovblk_3_6_Id" role="tooltip" data-priority="2"><div class="l_ecrd_hov_qna"><a tabindex="-1" href="https://www.geeksforgeeks.org/version-control-systems/#:~:text=Local%20Version%20Control%20Systems%3A%20It%20is" h="ID=SERP,6044.1"><div class="l_ecrd_hov_qna_txt"><p><span class="l_ecrd_txt_pln">It keeps patch sets (differences between files) in a special format on disk. By adding up all the patches it can then re-create what any file looked like at any point in time.</span></p></div><div class="l_ecrd_hov_qna_site"><img height="0" width="0" class="l_ecrd_hov_qna_site_fav" src="data:image/png;base64,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"/><span class="l_ecrd_hov_qna_site_txt">geeksforgeeks.org</span></div></a></div></div><div><a class=" l_ecrd_txt_lnk b_ignbt l_ecrd_txt_hover l_ecrd_hovblk_3_6 l_ecrd_hov_hitbox" aria-describedby="l_ecrd_hovblk_3_6_Id" hover-data="-" href="https://www.geeksforgeeks.org/version-control-systems/#:~:text=Local%20Version%20Control%20Systems%3A%20It%20is" h="ID=SERP,6045.1"><p><span class="l_ecrd_txt_pln">Local Version Control Systems: It is one of the simplest forms and has a </span><span class="l_ecrd_txt_hlt l_ecrd_txt_nound">database</span><span class="l_ecrd_txt_pln"> that kept all the changes to files under revision control. </span><span class="l_ecrd_txt_hlt l_ecrd_txt_nound">RCS</span><span class="l_ecrd_txt_pln"> is one of the most common VCS tools.</span></p></a></div></div><div class="l_ecrd_c2_svg"><svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="0" width="0"><line x1="0" y1="0" x2="296" y2="0" /></svg></div><div class="l_ecrd_c2_fct2"><div class="l_ecrd_hov l_ecrd_hovblk_3_9" id="l_ecrd_hovblk_3_8_Id" role="tooltip" data-priority="2"><div class="l_ecrd_hov_qna"><a tabindex="-1" href="https://www.cioinsight.com/application-development/what-is-version-control/#:~:text=A%20centralized%20VCS%20requires%20developers%20to" h="ID=SERP,6046.1"><div class="l_ecrd_hov_qna_txt"><p><span class="l_ecrd_txt_pln">If the centralized server crashes and the files are not backed up, all the software version changes are lost except for the files developers will have on their local computers.</span></p></div><div class="l_ecrd_hov_qna_site"><img height="0" width="0" class="l_ecrd_hov_qna_site_fav" src="data:image/png;base64,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"/><span class="l_ecrd_hov_qna_site_txt">cioinsight.com</span></div></a></div></div><div><a class=" l_ecrd_txt_lnk b_ignbt l_ecrd_txt_hover l_ecrd_hovblk_3_8 l_ecrd_hov_hitbox" aria-describedby="l_ecrd_hovblk_3_8_Id" hover-data="-" href="https://www.cioinsight.com/application-development/what-is-version-control/#:~:text=A%20centralized%20VCS%20requires%20developers%20to" h="ID=SERP,6047.1"><p><span class="l_ecrd_txt_pln">A centralized VCS requires developers to communicate with the server for every command, so developers must have a </span><span class="l_ecrd_txt_hlt l_ecrd_txt_nound">constant internet connection</span><span class="l_ecrd_txt_pln"> to communicate with the server.</span></p></a></div></div></div></div><div class="lite-entcard-blk l_ecrd_bkg_hlt" id="l_ecrd_blk_4_QnA"><div class="l_ecrd_a1"><div class="l_ecrd_txt_l"><div class="l_ecrd_hov l_ecrd_hovblk_5_11" id="l_ecrd_hovblk_5_10_Id" role="tooltip" data-priority="2"><div class="l_ecrd_hov_qna"><a tabindex="-1" href="https://financesonline.com/version-control-systems/#:~:text=GNU%20RCS%20is%20a%20revision%20control" h="ID=SERP,6048.1"><div class="l_ecrd_hov_qna_txt"><p><span class="l_ecrd_txt_pln">It lets software teams view the development history of projects, which accounts for the software versions and details of each. Code changes are monitored and can be edited through the system.</span></p></div><div class="l_ecrd_hov_qna_site"><img height="0" width="0" class="l_ecrd_hov_qna_site_fav" src="data:image/png;base64,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"/><span class="l_ecrd_hov_qna_site_txt">financesonline.com</span></div></a></div></div><div><a class=" l_ecrd_txt_lnk b_ignbt l_ecrd_txt_hover l_ecrd_hovblk_5_10 l_ecrd_hov_hitbox" aria-describedby="l_ecrd_hovblk_5_10_Id" hover-data="-" href="https://financesonline.com/version-control-systems/#:~:text=GNU%20RCS%20is%20a%20revision%20control" h="ID=SERP,6049.1"><p><span class="l_ecrd_txt_hlt l_ecrd_txt_nound">GNU RCS</span><span class="l_ecrd_txt_pln"> is a </span><span class="l_ecrd_txt_hlt l_ecrd_txt_nound">revision control platform</span><span class="l_ecrd_txt_pln"> that automates the storing, retrieval, logging, identification, and merging of revisions.</span></p></a></div></div></div></div><div class="lite-entcard-blk" id="l_ecrd_blk_ExploreMore" data-priority="2"><div class="l_ecrd_simgset"><div class="l_ecrd_imgsetgrid_ttl"><a hover-data="-" 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