Merge branch 'deltachatunstable' into 'master'

deltachat - UCM don't pick preview

See merge request fdroid/fdroiddata!5773

metadata/com.b44t.messenger.yml

@@ -589,27 +589,7 @@ Builds:
     build: $$NDK$$/ndk-build -j `nproc`
     ndk: r14b
 
-  - versionName: 0.910.0
-    versionCode: 552
-    commit: v0.910.0
-    submodules: true
-    gradle:
-      - fat
-    prebuild: sed -i -e '/applicationIdSuffix/d' build.gradle
-    build: $$NDK$$/ndk-build -j `nproc`
-    ndk: r14b
-
-  - versionName: 0.920.0
-    versionCode: 553
-    commit: v0.920.0
-    submodules: true
-    gradle:
-      - fat
-    prebuild: sed -i -e '/applicationIdSuffix/d' build.gradle
-    build: $$NDK$$/ndk-build -j `nproc`
-    ndk: r14b
-
 AutoUpdateMode: Version v%v
-UpdateCheckMode: Tags
-CurrentVersion: 0.920.0
-CurrentVersionCode: 553
+UpdateCheckMode: Tags ^v[0-9]+\.[0-9]+\.[0-9]+$
+CurrentVersion: 0.510.1
+CurrentVersionCode: 550