What's Changed
## changelog
- Flaky test fixes for race conditions and timing issues by @brooke-hamilton in #11339
- feat(codeowners): add on-call to manage github actions updates by @DariuszPorowski in #11342
- Add change detection to unit-tests.yaml to skip tests on doc-only changes by @Copilot in #11283
- Add issue investigator agent from Drasi repo by @nicolejms in #11221
- Bump the github-actions group across 1 directory with 9 updates by @dependabot[bot] in #11341
- Architecture skill with Mermaid pattern documentation by @brooke-hamilton in #11281
- allow upgrade to pass when upgrading between rcs by @nithyatsu in #11351
- chore(release): v0.55.0-rc6 by @DariuszPorowski in #11352
- Add apiextensions.k8s.io and dapr.io RBAC permissions to dynamic-rp service account by @Copilot in #11350
- Reorder docker command for accuracy by @willtsai in #11210
- Add e2e test for x-radius-sensitive annotation updates by @lakshmimsft in #11348
- feat: deployment engine image publishing by @DariuszPorowski in #11365
- State persistence architecture documentation by @brooke-hamilton in #11284
- fix(lrt): set database.enabled=false on LRT upgrade by @willdavsmith in #11371
- chore(release): v0.55.0-rc7 by @DariuszPorowski in #11372
- increase timeout for ns deletion by @nithyatsu in #11374
- chore(release): v0.55.0-rc8 by @DariuszPorowski in #11375
- Bump the go-dependencies group across 2 directories with 30 updates by @dependabot[bot] in #11379
- Bump the github-actions group with 7 updates by @dependabot[bot] in #11378
- Gosec version rollback to fix invalid SARIF output by @brooke-hamilton in #11386
- Fix confusing error message for unsupported output format; remove plain-text as advertised format by @Copilot in #11220
- Bump the github-actions group across 1 directory with 2 updates by @dependabot[bot] in #11388
- chore(release): v0.55.0 by @DariuszPorowski in #11392
- Deployment engine architecture documentation by @brooke-hamilton in #11385
- Contributing docs updater Copilot skill by @brooke-hamilton in #11401
- Add architecture diagrams for Radius services and CLI by @willdavsmith in #11399
- build(go): bump version to 1.26.1 by @DariuszPorowski in #11403
- Bump the go-dependencies group across 1 directory with 29 updates by @dependabot[bot] in #11427
- build(deps): bump the github-actions group across 1 directory with 3 updates by @dependabot[bot] in #11429
- Dev Container lockfile for reproducible feature pinning by @brooke-hamilton in #11410
- Bump github.com/cloudflare/circl from 1.6.1 to 1.6.3 by @dependabot[bot] in #11324
- Correct Helm flag from --set-string to --set in docs and CLI examples by @brooke-hamilton in #11404
- Bump flatted from 3.3.3 to 3.4.1 in /hack/bicep-types-radius/src/autorest.bicep by @dependabot[bot] in #11428
- docs(release): update release process by @DariuszPorowski in #11360
- Copilot skills for building CLI, container images, and installing Radius by @sk593 in #11402
- Add fix for LRT failures by @sk593 in #11448
- build(deps): bump the github-actions group with 4 updates by @dependabot[bot] in #11454
- build(deps): bump the go-dependencies group across 2 directories with 3 updates by @dependabot[bot] in #11453
- test(upc-aws): add response status validation and diags by @DariuszPorowski in #11443
- Fix Azure provider scope construction for v20250801preview API by @Copilot in #11440
- build(deps): bump google.golang.org/grpc from 1.78.0 to 1.79.3 by @dependabot[bot] in #11452
- build(deps): bump google.golang.org/grpc from 1.78.0 to 1.79.3 in /test/magpiego by @dependabot[bot] in #11451
- Update radius to setup default recipepack during rad init and env operations. by @nithyatsu in #11294
- Remove premature deprecation warnings for Applications.Core resources by @Copilot in #11460
- fix: x-plat installer scripts improvements by @DariuszPorowski in #11463
- Release-0.56.0-rc1 by @brooke-hamilton in #11469
Full Changelog: v0.55.0-rc5...v0.56.0-rc1