Cal.com v5.2.9 — Release Notes & Engineering Impact

## What's Changed * refactor: Replace attendee email with user id in idempotency key by @joeauyeung in https://github.com/calcom/cal.com/pull/21058 * fix: disabled sms hanging, by calling resolve() by @emrysal in https://github.com/calcom/cal.com/pull/21070 * fix: rf v3 tidy up mobile issues by @sean-brydon in https://github.com/calcom/cal.com/pull/21078 * fix: between operator for attribute matching by @vijayraghav-io in https://github.com/calcom/cal.com/pull/21031 * feat: verified resources endpoint [v2] by @ThyMinimalDev in https://github.com/calcom/cal.com/pull/21006 * fix: wrong info on cancelled email by @anikdhabal in https://github.com/calcom/cal.com/pull/21085 * fix: return for dry run by @sean-brydon in https://github.com/calcom/cal.com/pull/21088 * test: retry times for api v2 e2e test in CI by @anikdhabal in https://github.com/calcom/cal.com/pull/21087 * fix: Read user id properly when generating idempotency key by @joeauyeung in https://github.com/calcom/cal.com/pull/21092 * chore: bump platform libraries by @ThyMinimalDev in https://github.com/calcom/cal.com/pull/21101 * fix: add missing 'add' in profile username tip (#21049) by @shashwat558 in https://github.com/calcom/cal.com/pull/21097 * fix: typos in apps/api/v2 by @luzpaz in https://github.com/calcom/cal.com/pull/21105 * feat: add membership creation date to Organization Member List table (CAL-5406) by @eunjae-lee in https://github.com/calcom/cal.com/pull/21008 * fix: correct booker email input by @sean-brydon in https://github.com/calcom/cal.com/pull/21077 * fix: button fixes v3 by @sean-brydon in https://github.com/calcom/cal.com/pull/20557 * fix: meeting link fails when manually reassign by @anikdhabal in https://github.com/calcom/cal.com/pull/21106 * fix: {Organizer} placeholder in event title not updating on reschedule by @anikdhabal in https://github.com/calcom/cal.com/pull/21034 * build(packages/features): resolved type error when building `apps/web`. by @zhyd1997 in https://github.com/calcom/cal.com/pull/21094 * feat: booking URL validation to accept links without explicit mention of https:// by @retrogtx in https://github.com/calcom/cal.com/pull/21110 * fix: availability view error by @anikdhabal in https://github.com/calcom/cal.com/pull/21115 * fix: add back round robin data to insights/router-position by @CarinaWolli in https://github.com/calcom/cal.com/pull/21116 * chore: Update CODEOWNERS for booking tRPC handlers by @keithwillcode in https://github.com/calcom/cal.com/pull/21118 * perf: remove unnecessary routes from middleware by @hbjORbj in https://github.com/calcom/cal.com/pull/21089 * chore: Add proton.me to email provider list by @emrysal in https://github.com/calcom/cal.com/pull/21117 ## New Contributors * @shashwat558 made their first contribution in https://github.com/calcom/cal.com/pull/21097 * @zhyd1997 made their first contribution in https://github.com/calcom/cal.com/pull/21094 **Full Changelog**: https://github.com/calcom/cal.com/compare/v5.2.8...v5.2.9