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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 17:28:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 17:28:19 +0000 |
commit | 18657a960e125336f704ea058e25c27bd3900dcb (patch) | |
tree | 17b438b680ed45a996d7b59951e6aa34023783f2 /www/versionnumbers.html | |
parent | Initial commit. (diff) | |
download | sqlite3-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>
Diffstat (limited to '')
-rw-r--r-- | www/versionnumbers.html | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/www/versionnumbers.html b/www/versionnumbers.html new file mode 100644 index 0000000..fd00058 --- /dev/null +++ b/www/versionnumbers.html @@ -0,0 +1,217 @@ +<!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"); +if(j && j.hasAttribute("data-href")) j.href=j.getAttribute("data-href"); +} +function antiRobotDefense(){ +document.body.onmousedown=function(){ +antiRobot |= 2; +antiRobotGo(); +document.body.onmousedown=null; +} +document.body.onmousemove=function(){ +antiRobot |= 2; +antiRobotGo(); +document.body.onmousemove=null; +} +setTimeout(function(){ +antiRobot |= 1; +antiRobotGo(); +}, 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> + |