Hello, We have a discourse for the Scala PL for users which was running fine for years : [Bild] Scala Users a forum for the Scala programming language. beginner questions welcome Last week, I upgraded to the latest version using "./launcher rebuild app ", …

Looking deeper, deleting the _t cookie remove the “error 500”, but the error appears again when logged after maybe around 1h.

v2026.9.0 has not been release yet - are you referring to the development/latest version? [Bild] Discourse Releases Browse Discourse release history & changelogs.

I’ve not set any specific version, so I guess by default it should be latest (according to "tests-passed" is now "latest" ). In the dashboard, this is the version I get at the bottom.

In /logs, can you find the 500 error and share the error and its backtrace?

Fehler 500 nach Update auf v2026.9.0 / vorübergehend behoben durch Löschen der Browserdaten

Unterstützung Installation

merefield (Robert) 3. September 2026 um 17:18 5

Kannst du in /logs den 500-Fehler finden und den Fehler samt Backtrace teilen?

Thema		Antworten	Aufrufe
Forum doesn't work after latest upgrade Self-hosting	17	519	17. Mai 2024
Link to upgrade shows 500 error Bug	6	1074	2. Oktober 2017
HTTP Error 500 at main forum page after Discourse upgrade Support	4	781	25. August 2021
:cn: 500 error when upgrading Discourse \| Discourse 升级时候 500 错误 Sysadmins chinese-translation	2	391	19. Mai 2024
The discourse stopped working with error 500 Internal Server Error Bug	1	3106	7. März 2017

Fehler 500 nach Update auf v2026.9.0 / vorübergehend behoben durch Löschen der Browserdaten

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