#### AspectJ Development Tools (AJDT)
Use an update site corresponding to your Eclipse version (minimal version listed):
+// AspectJ_JDK_Update: add new release to table
+* Eclipse 2024-03 (4.31), AspectJ 1.9.22, Java 22: https://download.eclipse.org/tools/aspectj/ajdt/431/dev/update
* Eclipse 2023-12 (4.30), AspectJ 1.9.21, Java 21: https://download.eclipse.org/tools/aspectj/ajdt/430/dev/update<br>
**Please note:** In Eclipse 2023-12, you should also add
https://download.eclipse.org/eclipse/updates/4.31-I-builds/I20231201-1800/ in addition to the regular release update
|Compatibility matrix, explaining which AspectJ compiler version supports which Java language version and needs which
JDK to run
+// AspectJ_JDK_Update: add new release to table
|Release notes |Release notes, describing new features, improvements, bugfixes per AspectJ version: +
+
+xref:release/README-1.9.22.adoc[1.9.22],
xref:release/README-1.9.21.adoc[1.9.21 / 1.9.21.1 / 1.9.21.2], xref:release/README-1.9.20.adoc[1.9.20 / 1.9.20.1],
xref:release/README-1.9.19.adoc[1.9.19], xref:release/README-1.9.9.adoc[1.9.9 / 1.9.9.1],
xref:release/README-1.9.8.adoc[1.9.8], xref:release/README-1.9.7.adoc[1.9.7],
process byte code or compile source code using features of a certain Java language version. Since Java 10, this cannot
be easily concluded from the AspectJ version number anymore, and we are sorry for that. So here is a little overview:
+// AspectJ_JDK_Update: add new row to table
[%autowidth, stripes=even, options="header"]
|===
|AspectJ version |Java version |Comments
+|1.9.22 |22 |
|1.9.21 - 1.9.21.2 |21 |AspectJ compiler requires JDK 17+ during build time. During runtime, AspectJ still only requires Java 8+ for both compile-time and load-time weaving. Pure Java code can be compiled down to as old as 1.3 byte code level.
|1.9.20 - 1.9.20.1 |20 |
|1.9.19 |19 |