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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:28:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:28:19 +0000
commit18657a960e125336f704ea058e25c27bd3900dcb (patch)
tree17b438b680ed45a996d7b59951e6aa34023783f2 /www/versionnumbers.html
parentInitial commit. (diff)
downloadsqlite3-upstream.tar.xz
sqlite3-upstream.zip
Adding upstream version 3.40.1.upstream/3.40.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!DOCTYPE html>
+<html><head>
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<link href="sqlite.css" rel="stylesheet">
+<title>Version Numbers in SQLite</title>
+<!-- path= -->
+</head>
+<body>
+<div class=nosearch>
+<a href="index.html">
+<img class="logo" src="images/sqlite370_banner.gif" alt="SQLite" border="0">
+</a>
+<div><!-- IE hack to prevent disappearing logo --></div>
+<div class="tagline desktoponly">
+Small. Fast. Reliable.<br>Choose any three.
+</div>
+<div class="menu mainmenu">
+<ul>
+<li><a href="index.html">Home</a>
+<li class='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a>
+<li class='wideonly'><a href='about.html'>About</a>
+<li class='desktoponly'><a href="docs.html">Documentation</a>
+<li class='desktoponly'><a href="download.html">Download</a>
+<li class='wideonly'><a href='copyright.html'>License</a>
+<li class='desktoponly'><a href="support.html">Support</a>
+<li class='desktoponly'><a href="prosupport.html">Purchase</a>
+<li class='search' id='search_menubutton'>
+<a href="javascript:void(0)" onclick='toggle_search()'>Search</a>
+</ul>
+</div>
+<div class="menu submenu" id="submenu">
+<ul>
+<li><a href='about.html'>About</a>
+<li><a href='docs.html'>Documentation</a>
+<li><a href='download.html'>Download</a>
+<li><a href='support.html'>Support</a>
+<li><a href='prosupport.html'>Purchase</a>
+</ul>
+</div>
+<div class="searchmenu" id="searchmenu">
+<form method="GET" action="search">
+<select name="s" id="searchtype">
+<option value="d">Search Documentation</option>
+<option value="c">Search Changelog</option>
+</select>
+<input type="text" name="q" id="searchbox" value="">
+<input type="submit" value="Go">
+</form>
+</div>
+</div>
+<script>
+function toggle_div(nm) {
+var w = document.getElementById(nm);
+if( w.style.display=="block" ){
+w.style.display = "none";
+}else{
+w.style.display = "block";
+}
+}
+function toggle_search() {
+var w = document.getElementById("searchmenu");
+if( w.style.display=="block" ){
+w.style.display = "none";
+} else {
+w.style.display = "block";
+setTimeout(function(){
+document.getElementById("searchbox").focus()
+}, 30);
+}
+}
+function div_off(nm){document.getElementById(nm).style.display="none";}
+window.onbeforeunload = function(e){div_off("submenu");}
+/* Disable the Search feature if we are not operating from CGI, since */
+/* Search is accomplished using CGI and will not work without it. */
+if( !location.origin || !location.origin.match || !location.origin.match(/http/) ){
+document.getElementById("search_menubutton").style.display = "none";
+}
+/* Used by the Hide/Show button beside syntax diagrams, to toggle the */
+function hideorshow(btn,obj){
+var x = document.getElementById(obj);
+var b = document.getElementById(btn);
+if( x.style.display!='none' ){
+x.style.display = 'none';
+b.innerHTML='show';
+}else{
+x.style.display = '';
+b.innerHTML='hide';
+}
+return false;
+}
+var antiRobot = 0;
+function antiRobotGo(){
+if( antiRobot!=3 ) return;
+antiRobot = 7;
+var j = document.getElementById("mtimelink");
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+}
+function antiRobotDefense(){
+document.body.onmousedown=function(){
+antiRobot |= 2;
+antiRobotGo();
+document.body.onmousedown=null;
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+antiRobot |= 2;
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+setTimeout(function(){
+antiRobot |= 1;
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+}, 100)
+antiRobotGo();
+}
+antiRobotDefense();
+</script>
+<div class=fancy>
+<div class=nosearch>
+<div class="fancy_title">
+Version Numbers in SQLite
+</div>
+</div>
+
+
+
+
+
+<h1 id="sqlite_version_numbers"><span>1. </span>SQLite Version Numbers</h1>
+
+<p>
+Beginning with <a href="releaselog/3_9_0.html">version 3.9.0</a> (2015-10-14) SQLite uses
+<a href="http://semver.org">semantic versioning</a>.
+Prior to that time, SQLite employed a version identifier that
+contained between two and four numbers.
+
+</p><h2 id="the_new_version_numbering_system_after_dateof_3_9_0_"><span>1.1. </span>The New Version Numbering System (After 2015-10-14)</h2>
+
+<p>
+All SQLite releases starting with 3.9.0 use a three-number
+"<a href="http://semver.org">semantic version</a>" of the form X.Y.Z.
+The first number X is only increased when there is a change that
+breaks backward compatibility. The
+current value for X is 3, and the SQLite developers plan to support
+the current SQLite database file format, SQL syntax, and C interface
+through <a href="lts.html">at least the year 2050</a>. Hence, one
+can expect that all future versions of SQLite for the next several
+decades will begin with "3.".
+
+</p><p>
+The second number Y is incremented for any change that breaks forward
+compatibility by adding new features.
+Most future SQLite releases are expected
+to increment the second number Y. The Z is reset to zero whenever Y
+is increased.
+
+</p><p>
+The third number Z is incremented for releases consisting of only
+small changes that implement performance enhancements and/or bug fixes.
+
+</p><p>
+The rate of enhancement for SQLite over the previous five years
+(2010-2015) is approximately 6 increments of Y per year. The
+numbering format used by for <a href="c3ref/c_source_id.html">SQLITE_VERSION_NUMBER</a> and
+<a href="c3ref/libversion.html">sqlite3_libversion_number()</a> allows versions up to 3.999.999, which is
+more than enough for the planned end-of-support date for SQLite
+in 2050. However, the current tarball naming conventions only
+reserve two digits for the Y and so the naming format for downloads
+will need to be revised in about 2030.
+
+</p><h2 id="the_historical_numbering_system_before_dateof_3_9_0_"><span>1.2. </span>The Historical Numbering System (Before 2015-10-14)</h2>
+
+<p>This historical version numbering system used a two-, three-,
+or four-number version: W.X, W.X.Y, or W.X.Y.Z.
+W was the file format: 1 or 2 or 3.
+X was the major version.
+Y was the minor version.
+Z was used only for patch releases to fix bugs.
+
+</p><p>
+There have been three historical file formats for SQLite.
+SQLite 1.0 through 1.0.32 used the
+<a href="https://www.gnu.org/software/gdbm/gdbm.html">gdbm</a> library as its storage
+engine.
+SQLite 2.0.0 through 2.8.17 used a custom b-tree storage engine that
+supported only text keys and data.
+All modern versions of SQLite (3.0.0 to present) use a b-tree storage
+engine that has full support for binary data and Unicode.
+
+</p><p>
+This major version number X was historically incremented only for
+large and important changes to the code. What constituted "large
+and important" was subjective. The 3.6.23 to 3.7.0 change
+was a result of adding support for <a href="wal.html">WAL mode</a>.
+The 3.7.17 to 3.8.0 change was a result of rewrite known as the
+<a href="queryplanner-ng.html">next generation query planner</a>.
+
+</p><p>
+The minor version number Y was historically incremented for new
+features and/or new interfaces that did not significantly change
+the structure of the code. The addition of <a href="lang_with.html">common table expressions</a>,
+<a href="partialindex.html">partial indexes</a>, and <a href="expridx.html">indexes on expressions</a> are all examples of
+"minor" changes. Again, the distinction between "major" and "minor"
+is subjective.
+
+</p><p>
+The patch level Z was historically only used for bug-fix releases
+that changed only a small number of code lines.
+
+</p><h2 id="version_history"><span>1.3. </span>Version History</h2>
+
+<ul>
+<li><a href="chronology.html">Chronology</a>
+</li><li><a href="changes.html">Change log</a>
+</li></ul>
+<p align="center"><small><i>This page last modified on <a href="https://sqlite.org/docsrc/honeypot" id="mtimelink" data-href="https://sqlite.org/docsrc/finfo/pages/versionnumbers.in?m=d046ec30f9003d769">2018-05-31 17:37:17</a> UTC </small></i></p>
+