Changes between Version 6 and Version 18 of Help/SystemRequirements

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Help/SystemRequirements

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 == Software requirements ==
 
+JOSM requires a recent version of [https://www.azul.com/downloads/?version=java-11-lts&package=jre-fx Java 11] or later runtime environment to be installed on your computer. [https://www.azul.com/downloads/?version=java-21-lts&package=jre-fx Java 21] or later is preferred.
 
-JOSM requires a recent version of [http://www.java.com/en/download/ Java 6] runtime environment to be installed on your computer.
+If you have only an older Java version and cannot update, there were older versions of JOSM available. Unfortunately, most of them will no longer work after June 01, 2024.
+* Version [/download/Archiv/josm-snapshot-3377.jar 3377] for Java 5.
+* Version [/download/Archiv/josm-snapshot-7000.jar 7000] for Java 6.
+* Version [/download/Archiv/josm-snapshot-10526.jar 10526] for Java 7.
+* Version [/download/josm-snapshot-18969.jar 18969] for Java 8.
 
-JOSM is also compatible with '''Java 7''' and we encourage you to update to this version for security reasons, as Oracle stopped the support of Java 6 in March 2013. We plan to switch to Java 7 soon, see #8465.
+Old versions of JOSM, including Mac and Windows installers, are available in the [/download download archive]. However it is highly recommended to always use the [wikitr:/WikiStart latest stable version].
 
-If you have only Java 5 and cannot update, there are older versions of JOSM available: Version [http://josm.openstreetmap.de/download/josm-snapshot-3377.jar 3377] and below runs with Java 5. Old versions of JOSM, including Mac and Windows installers, are available in the [http://josm.openstreetmap.de/download/ download archive].
+If you have only an old version of Java 7 (older than **update 25**, released in June 2013), you can run version 10526 of JOSM, but you may face the following Java bug. To get rid of it, please perform the corresponding update actions.
 
-If you have only an old version of Java 6 (older than '''update 27''', released in August 2011), you can run the latest version of JOSM, but you may face one of the following Java bugs. To get rid of it, please perform the corresponding update actions.
+* #8182: Mac OS: Cannot open files in directories with swedish characters in them -> Update to Java 7 update 10 or later (see [https://bugs.java.com/bugdatabase/view_bug?bug_id=7193966 Java bug 7193966])
 
-* #8387: Ubuntu: Dialog moves down in Ubuntu Unity -> Install latest Ubuntu updates (see [https://bugs.launchpad.net/ubuntu/+source/openjdk-7/+bug/1110138 Ubuntu bug 1110138])
-* #8182: Mac OS: Cannot open files in directories with swedish characters in them -> Update to Java 7 update 10 or later (see [http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7193966 Java bug 7193966])
-* #7206: All OS: Cannot load preferences.xml -> Update to Java 6 update 14 or later (see [http://bugs.sun.com/view_bug.do?bug_id=6708840 Java bug 6708840])
-* #6993: Ubuntu: Tooltips not displayed at the right place -> Install latest Ubuntu updates
-* #6989: Ubuntu: Bad links sent to browser -> Install latest Ubuntu updates
-* #6965: Windows: Error when using File/Save As -> Upgrade to Java 7 (see [http://bugs.sun.com/view_bug.do?bug_id=6210674 Java bug 6210674])
-* #6769: Ubuntu: Download window initialization error -> Install latest Ubuntu updates or upgrade to Java 7 (see [http://bugs.sun.com/view_bug.do?bug_id=6523403 Java bug 6523403])
+== Troubleshooting ==
+
+* Launching JOSM on the command line outputs
+{{{
+Exception in thread "main" java.lang.UnsupportedClassVersionError: JOSM : Unsupported major.minor version 52.0
+}}}
+  → Make sure to install the Java version described above.
+
+== Hardware requirements ==
+
+It will heavily depends on the workflow, installed plugins, active mappaint styles, amount of loaded data and imagery in use.
+
+But it is feasible to use JOSM on computers with parameters such as 512 MB of RAM.