Was ist neu

Booking-page fixes: every free day is reachable, failures explain themselves, and video invitations reach the attendee.

• Every bookable day and month is reachable on the booking calendar Selbst gehostet
• A page that cannot load its times says so and asks the visitor to retry Selbst gehostet
• An ad-hoc meeting that books a video room now invites the attendee Selbst gehostet
• Slack notifications are sent when Telegram is connected as well Selbst gehostet
• CalDAV calendars connect to servers that answer 405 to discovery Selbst gehostet

Booking pages now open on a day visitors can actually book, and cancellation emails link back to the host.

• The booking calendar opens on the first free day with its times loaded Selbst gehostet
• Rescheduling lands on a bookable day instead of an empty month Selbst gehostet
• Webhook payloads now include the meeting's guests Selbst gehostet
• The cancellation email links back to the host's booking page Selbst gehostet

A reliability and security release: bookings fail safe, integrations survive provider outages, and sign-in events are audited.

• Bookings are refused for times the host's schedule never offered Selbst gehostet
• A video provider outage now trips a circuit breaker instead of retrying Selbst gehostet
• Booking emails wait out a mail outage instead of being dropped Selbst gehostet
• Account lockouts, password changes and social sign-ins are now audited Selbst gehostet
• Booking errors and the agenda countdown appear in the visitor's language Selbst gehostet

A reliability release for bookings that use a video meeting, calendar sync and profile photos.

• A booking with a video meeting is confirmed exactly once, however slowly the link arrives Selbst gehostet
• A Teams account that cannot host a meeting confirms the booking without a link Selbst gehostet
• CalDAV calendars are found on servers that answer under a subpath Selbst gehostet
• Choosing a second profile photo no longer takes the page down Selbst gehostet
• Email addresses on newer domain endings are accepted again Selbst gehostet

Video integrations can now reach a meeting server on your own private network.

• ALLOW_PRIVATE_IPS_FOR_VIDEO permits a meeting server on an internal network Selbst gehostet
• Custom video links and self-hosted MiroTalk both accept a private address Selbst gehostet

Meeting polls settle a group on a time by voting, and transactional emails can now carry your own branding.

• Propose several candidate times and let invitees vote to settle on one Selbst gehostet
• Confirming the winning time books the meeting with everyone invited Selbst gehostet
• Set your own logo, brand name and accent colour on transactional emails Selbst gehostet
• Email buttons and links now meet accessibility contrast requirements Selbst gehostet
• Nextcloud calendars now connect on installs served from a subdirectory Selbst gehostet

A security release covering the login redirect check and three dependency advisories.

• Login redirects reject crafted targets that a browser would resolve off-site Selbst gehostet
• Bundled dependencies updated to clear three security advisories Selbst gehostet

Availability is now built from named schedules, and every meeting type can follow its own.

• Keep up to five named schedules, each with its own hours, breaks and rules Selbst gehostet
• Every meeting type follows the schedule you give it, or your default schedule Selbst gehostet
• Buffer, minimum notice and the booking window now belong to a schedule Selbst gehostet
• Rate limiting no longer locks out signups or visitors behind a shared proxy Selbst gehostet
• Webhook deliveries stop retrying once the endpoint has rejected them outright Selbst gehostet
• Now built on the Cloudron 5.1 base image Selbst gehostet

The dashboard now opens on your calendar, and calendar connection problems stay visible until fixed.

• The dashboard opens on your calendar, with all navigation in the sidebar Selbst gehostet
• The Integrations badge names the integration that needs attention Selbst gehostet
• A broken calendar connection alerts once and stays flagged until you reconnect Selbst gehostet
• Fixed crashes when opening an event with a reminder or when a break is rejected Selbst gehostet

The meeting type editor moves to tabs, rescheduling notifies everyone again, and translations are corrected throughout.

• Edit a meeting type through five tabs instead of one long scrolling form Selbst gehostet
• Rescheduling now sends its own email and replaces the existing calendar entry Selbst gehostet
• Rescheduling a booking again fires webhooks, chat alerts and reminders Selbst gehostet
• Every translation reviewed and corrected across all five languages
• Pricing plan cards are translated, and long text no longer overflows Cloud

Tymeslot now speaks six languages, and hosts can cap how many bookings they take.

• The whole app now speaks German, French, Italian, Ukrainian and Czech Selbst gehostet
• Cap how many bookings you accept per day, week or month Selbst gehostet
• Give each connected calendar its own colour, and show or hide it in the grid Selbst gehostet
• Disconnecting a video provider can now clean up its meeting rooms too Selbst gehostet
• The marketing site is localised, with prices in each market's own currency Cloud

Calendar feed subscriptions and invoicing for paid bookings, with CalDAV sync and daylight-saving fixes.

• Subscribe to any published calendar feed by URL and have it block your availability Selbst gehostet
• Invoices are now issued automatically for paid meeting bookings Selbst gehostet
• Download your subscription invoices from the billing dashboard Cloud
• CalDAV sync no longer stalls or drops events on stricter servers Selbst gehostet
• Booking times stay correct across daylight-saving and the 2026 clock changes Selbst gehostet

New email delivery providers alongside calendar sync, video link and email reliability fixes.

• Send email through SendGrid, Mailgun or AhaSend as well as SMTP and Postmark Selbst gehostet
• Read-only calendars are no longer offered as booking targets Selbst gehostet
• Organisers and guests now reliably receive video join links Selbst gehostet
• CalDAV sync recovers from emptied calendars and stricter servers Selbst gehostet
• A misconfigured email provider now fails at startup instead of silently dropping mail Selbst gehostet

External PostgreSQL support and a slim Docker image, faster page loads, and calendar sync and accessibility fixes.

• Connect to an external PostgreSQL with DATABASE_URL, including TLS Selbst gehostet
• A slim Docker image that runs PostgreSQL as its own container Selbst gehostet
• Faster page loads with zstd-compressed assets and lighter provider icons Selbst gehostet
• Calendar event updates use the provider's id, fixing Google sync failures Selbst gehostet
• Marketing and legal pages meet WCAG AA contrast Cloud

Descriptions on meeting type cards, a Stripe API generation upgrade, a Connect onboarding fix, and security patches for six bundled dependencies.

• Descriptions now appear on meeting type cards Selbst gehostet
• Security patches for six bundled dependencies, including Phoenix and LiveView Selbst gehostet
• Stripe now runs on the 2025-11-17 API generation, no webhook changes needed
• Stripe Connect onboarding no longer blocked by the security policy Selbst gehostet
• Booking pages no longer fail on daylight-saving changeover days Selbst gehostet
• Renewed subscriptions are no longer cancelled prematurely Cloud

Meeting reschedule and cancellation cleanup fixes, timezone display corrections, and Outlook calendar sync hardening.

A maintenance release with background job, build configuration and contribution tooling fixes.

A branded 404 page, an onboarding calendar fix, and security patches to bundled dependencies.

• A branded 404 page for unknown routes Selbst gehostet
• Security patches for bundled HTTP dependencies (plug, hpax, mint) Selbst gehostet

A unified integrations hub, calendar colour sync, and a live dashboard agenda, alongside encryption, security and accessibility hardening.

• Unified integrations hub for calendars, video and payments with health status and one-click reconnect Selbst gehostet
• Event colours now sync both ways with your calendar provider Selbst gehostet
• Data-at-rest encryption key can be rotated independently of deployment Selbst gehostet
• Live "Your day" agenda and setup nudges on the dashboard overview Selbst gehostet
• Improved keyboard and screen-reader accessibility across booking and dashboard Selbst gehostet

A fuller in-app calendar, Apple iCloud sync, and Tymeslot's move to open source under AGPLv3.

• Create recurring and all-day calendar events, with colours and reminders Selbst gehostet
• Quick-add, search, agenda view and keyboard shortcuts for the calendar Selbst gehostet
• Apple iCloud added as a calendar provider alongside Google, Outlook and CalDAV Selbst gehostet
• Live booking-page preview and theme picker moved into onboarding Selbst gehostet
• Relicensed under AGPLv3, so self-hosters can modify and redistribute Tymeslot Selbst gehostet

Personal free/busy feed, richer calendar events, and CalDAV improvements.

• Personal free/busy calendar feed for sharing availability externally Selbst gehostet
• Calendar events enriched with conference links, language tags and free/busy status Selbst gehostet
• SMTP now accepts wildcard TLS certificates Selbst gehostet

Session security hardening, stage-aware onboarding emails, and marketing page improvements.

• Sessions end immediately on logout or credential change Selbst gehostet
• Onboarding emails adapt to each user's activation stage Cloud
• Structured data and performance improvements on marketing pages Cloud

WordPress embed guidance, a public FAQ page, and stability fixes.

• Embed dashboard links WordPress users to the official plugin Selbst gehostet
• Public FAQ page covering common questions Cloud
• Blocked embeds show a clear notice rather than the homepage Selbst gehostet

One-click Google Calendar connect in onboarding, plus small fixes.

• One-click Google Calendar connect during onboarding Selbst gehostet

A booking analytics dashboard with traffic sources, conversion and device breakdowns, plus a marketing blog and hardened security.

• Booking analytics dashboard with traffic sources, visits and conversion over time Selbst gehostet
• Cookie-less, bot-filtered analytics with UTM and tracking-parameter capture Selbst gehostet
• Booking analytics available on Pro Cloud
• Marketing blog with featured posts, cover images and competitor comparison pages Cloud
• Tighter content security policy and SSRF protection on calendar and video integrations Selbst gehostet

Guest attendees with email RSVP, richer booking-link sharing, and a new pricing page.

• Guest attendees with email RSVP on bookings, including a per-type guest limit Selbst gehostet
• Private and direct booking links for individual meeting types Selbst gehostet
• Booking-link share previews with organiser photo and details Selbst gehostet
• Features and Resources navigation menus with icons Selbst gehostet
• New pricing page Cloud

Zoom and Google Meet calendar reliability fixes.

Paid bookings via Stripe Connect, custom booking questions, Zoom and Slack integrations, an admin control panel and a guided dashboard tour.

• Paid meeting types with Stripe Connect checkout, refunds and a payments dashboard Selbst gehostet
• Custom booking questions shown in emails, calendar events and confirmations Selbst gehostet
• Zoom and Slack integrations for video meetings and booking notifications Selbst gehostet
• Admin control panel for self-hosted installs with sign-in and security toggles Selbst gehostet
• Guided post-onboarding dashboard tour and what's-new announcements Selbst gehostet

Calendar sync and Cloudron boot reliability fixes.

Inline Google Meet links on Google Calendar events, plus calendar fixes.

• Google Meet links created inline with Google Calendar events Selbst gehostet

Booking title, calendar move and email-handling fixes.

Profession hub redesign and a CalDAV duplicate-invite fix.

Onboarding email funnel for new users plus booking calendar and calendar-sync fixes.

• Onboarding email funnel for newly verified users Cloud

Founder welcome email with one-click unsubscribe and marketing opt-out controls.

• Founder welcome email with one-click unsubscribe Cloud

Custom booking page colours, redaction-aware file logging, and calendar-sync fixes.

• Custom colour picker for booking page palettes and backgrounds Selbst gehostet
• Rotating file logs with sensitive-data redaction Selbst gehostet

Booking form localisation, email rendering, and CalDAV booking fixes.

Auto-pausing of unhealthy integrations, refined docs filtering, and updated legal policies.

• Auto-pause integrations stuck unhealthy past the configured cutoff Selbst gehostet
• Topic, provider and self-hosting filters for docs Cloud
• Updated v1.1 Terms and Privacy Policy Cloud

mailbox.org CalDAV support with guided provider setup and integration credential alerts.

• mailbox.org added as a CalDAV calendar provider Selbst gehostet
• Guided CalDAV setup with per-provider articles and in-form links Selbst gehostet
• Immediate alerts when integration credentials become invalid Selbst gehostet
• Load environment variables from a .env file at boot Selbst gehostet

Richer calendar views and resilient CalDAV reconnection and credential rotation.

• 3-day calendar view with swipe navigation and responsive view demotion Selbst gehostet
• CalDAV credential rotation without recreating the integration Selbst gehostet
• OAuth reconnect button on calendar integration cards Selbst gehostet
• Automatic reauth flagging when CalDAV sync hits 401 Selbst gehostet

Reliability and security fixes across booking forms, billing webhooks and reschedule emails.

Italian language support plus extensive security and reliability hardening.

• Italian added to supported booking and email languages Selbst gehostet
• Stronger account lockout, open-redirect and webhook SSRF protections Selbst gehostet

Calendar sync reliability fixes and email translations.

• Dashboard warning when a calendar integration has no calendars selected Selbst gehostet
• User-facing emails translated into French, German and Ukrainian Selbst gehostet

Docker first-run, availability and request-isolation fixes.

Booking security hardening and calendar fixes.

• Closed access-control gaps on meeting cancel and reschedule Selbst gehostet

Subscription dashboard and calendar sync fixes.

• Subscription dashboard covers past-due and unpaid states with post-checkout polling Cloud

Recurring-event availability and calendar audit fixes.

Version metadata fixes for release tooling.

Changelog, manifest and tooling fixes.

CalDAV reliability overhaul with offline write queue and conflict resolution.

• CalDAV offline write queue so calendar changes are retried when the server is unreachable Selbst gehostet
• CalDAV conflict resolution with conditional-write retries on transient errors Selbst gehostet
• Centralised attendee notifications with change detection and correct ICS sequencing Selbst gehostet
• Scheduling page availability refreshes automatically after calendar sync Selbst gehostet

Timezone handling and security hardening across booking and calendar sync.

• Robust timezone handling with quoted-TZID normalisation and DST-correct conversions Selbst gehostet
• Public booking page honours the configured meeting type order Selbst gehostet
• Mobile dashboard and auth page layout fixes Selbst gehostet

Redesigned 2026 emails, a canonical calendar event model and stronger CalDAV sync.

• Redesigned transactional and system emails for 2026
• Periodic forced full re-sync and event fingerprinting for CalDAV calendars Selbst gehostet
• Unified calendar event model normalising all providers Selbst gehostet
• Redesigned profession and category hub pages with improved SEO Cloud
• Open Graph social card images for shared links Selbst gehostet

Multi-attendee meetings, calendar invitations and a redesigned onboarding flow.

• Multi-attendee calendar events with invitation emails and attendee management Selbst gehostet
• Ad-hoc meeting invitations created from the dashboard calendar Selbst gehostet
• Attendees notified when the organiser updates event details Selbst gehostet
• Redesigned split-screen onboarding with step-by-step scheduling setup Selbst gehostet
• Stricter domain and email validation with typo suggestions Selbst gehostet

A calendar grid with inline event editing and a hardened sync engine.

• Calendar grid with inline title editing and event management Selbst gehostet
• Calendar event sync engine with batch webhooks and async operations Selbst gehostet
• Scheduling and calendar mode tab bar in the dashboard Selbst gehostet
• Optional profile timezone Selbst gehostet

Multi-account integration support with curated timezone handling.

• Connect multiple accounts per integration with per-account uniqueness Selbst gehostet
• Email location labels translated per recipient's locale Selbst gehostet
• Improved timezone picker with popular-first ordering Selbst gehostet

Cloudron deployment, meeting-type and availability hardening fixes.

• Weitere Fehlerbehebungen und Stabilitätsverbesserungen.

Embed system split into inline and modal modes, responsive video backgrounds, and many profession landing pages.

• Inline and modal embed modes for the booking widget Selbst gehostet
• Responsive video transcoding for uploaded backgrounds Selbst gehostet
• Availability now spans the full 42-day calendar display range Selbst gehostet
• New profession landing pages with free-plan pricing and FAQs Cloud

Profession landing pages and a redesigned site footer with extra link columns.

• 27 profession landing pages at /for/:slug Cloud
• Redesigned footer with extra link columns Selbst gehostet
• Signed parent-origin verification for embedded booking pages Selbst gehostet

Free/busy calendar transparency, availability overrides and hardened iframe embed security.

• Respect calendar event transparency (free/busy) across all providers Selbst gehostet
• Availability overrides applied to business-hours calculation Selbst gehostet
• Hardened iframe embed security with wildcard domains and www auto-matching Selbst gehostet
• Config-driven dashboard extension system Selbst gehostet
• Plain-text bodies added to all email templates Cloud

Session-free WebSocket for cross-origin embeds and smoother Cloudron install.

• Session-free WebSocket for cross-origin embed iframes Selbst gehostet
• Auto-generated secret key on first Cloudron install Selbst gehostet

Signed token authentication for embedded booking pages.

• Signed token auth for embeds, replacing cookie rewriting Selbst gehostet

Booking and auth form validation now surface errors per field on blur.

• Per-field booking validation errors shown on touched fields Selbst gehostet
• Debounced email validation on auth forms Selbst gehostet

New features reference page, JSON-LD docs markup and release workflow tooling.

• Features page with full feature reference Cloud

Internal release tooling to sync version tags to the Core mirror.

Embedded-iframe booking improvements for cross-site scheduling.

• Embedded scheduling works cross-site with correct theme background and layout Selbst gehostet
• Version number shown in the site footer Selbst gehostet

A small Docker build-script fix.

Cloudron OIDC and sendmail addons are now auto-detected at startup.

• Automatic detection of Cloudron OIDC and sendmail addons Selbst gehostet

Calendar integration password handling fixes.

Booking pages can be embedded in any website, with a new weekly calendar view.

• Embed your booking page in any website via iframe Selbst gehostet
• Weekly calendar view for scheduling Selbst gehostet

Telegram booking notifications and confirmation-page fixes.

• Telegram notifications for bookings, with a guided connection wizard Selbst gehostet
• Cancellation and reschedule emails sent in the attendee's language Selbst gehostet

A public changelog page plus footer links to changelog and docs.

• Public changelog page with full release history Cloud
• Google Meet links created automatically for bookings Selbst gehostet

Hardened OAuth/SSO sign-in security and an option to disable password auth.

• Option to disable password-based sign-in
• Hardened OAuth single sign-on security and validation Selbst gehostet

Generic OAuth/OIDC single sign-on and localised meeting cancel/reschedule pages.

• Sign in with any OAuth/OIDC provider for single sign-on Selbst gehostet
• Localised meeting cancel, reschedule and confirmation pages Selbst gehostet

Calendar OAuth scope tightening and docs navigation polish.

• Requests only the calendar events OAuth scope instead of broad calendar access Selbst gehostet

Documentation expansion and registration gating.

• Expanded documentation with new articles, author profiles, tag filtering and search Cloud
• Feature flag to enable or disable user registration Selbst gehostet
• Embeddable booking widget script Selbst gehostet

Calendar and meeting settings UI fixes.

• Inactive calendar integrations now shown in meeting settings with fixed links Selbst gehostet

Onboarding timezone persistence and test setup fixes.

• Browser-detected timezone now saved during onboarding Selbst gehostet

Subscription reliability, billing data retention and cascade-delete fixes.

• Stripe event payloads retained for 30 days then automatically removed Cloud
• More accurate trial subscription handling Cloud

Structured logging infrastructure and logging hygiene.

Booking duration and video OAuth fixes.

• Meeting duration now correctly preserved throughout the booking flow

Per-attendee email localisation, CalDAV improvements and a broad mobile UI overhaul.

• Per-attendee locale for emails, with plain-text fallbacks for all templates
• Improved CalDAV discovery and Zimbra support Selbst gehostet
• Mobile timeline view for the availability grid Selbst gehostet
• Video integration editing with URLs shown in the list Selbst gehostet
• Wide-ranging mobile layout improvements across dashboard settings Selbst gehostet

CalDAV, Zimbra calendar support and deployment fixes.

• Zimbra calendar provider support Selbst gehostet

A small login page fix.

Docker and Railway deployment build fixes.

Integration health monitoring and onboarding email improvements, with many fixes.

• Integration health tracking that notifies users when calendar or video connections keep failing Selbst gehostet
• Onboarding email funnel with verification reminders and a founder welcome Cloud
• Page titles and meta descriptions on authentication pages Selbst gehostet
• Clearer error when Microsoft sign-in needs admin consent Selbst gehostet
• Railway deployment support via Nixpacks Selbst gehostet

Security hardening across booking spam protection, rate limiting and structured logging.

• Booking form spam protection with honeypot and reCAPTCHA v3 Selbst gehostet
• Rate limiting across dashboard write operations, theme and meeting actions Selbst gehostet
• Zimbra calendar provider with SSRF protection Selbst gehostet
• Structured JSON logging Selbst gehostet

Booking theme contrast and layout fixes, plus an icon XSS hardening.

Zimbra calendar support and HTTP proxy configuration.

• Zimbra calendar provider support Selbst gehostet
• HTTP proxy configuration support Selbst gehostet

French translation support and custom video provider improvements, with extensive fixes.

• Complete French translation Selbst gehostet
• Custom video provider with template variables in meeting URLs Selbst gehostet
• Configurable listen IP for self-hosted deployments Selbst gehostet
• Improved CalDAV server detection and authentication Selbst gehostet

• Rewrite author email to GitHub no-reply for tymeslot-core sync
• Weitere Fehlerbehebungen und Stabilitätsverbesserungen.

Paid plans, privacy-friendly analytics, and hardened embedding.

• Feature gating for subscription tiers — automations locked behind paid plans Cloud
• Analytics integration with Umami
• SEO metadata and sitemap for the marketing site Cloud
• Secure-by-default embedding with an inline dashboard preview
• Video room recovery with automatic retry logic
• External database support for Docker deployments Selbst gehostet
• Comprehensive SMTP configuration with startup validation Selbst gehostet

Stripe billing and full subscription management.

• Stripe subscription management with trial support Cloud
• Billing portal and full subscription status dashboard Cloud
• Automated Stripe webhook handling for disputes, refunds, and trial lifecycle events Cloud
• Drag-and-drop ordering of meeting types
• Branded "Powered by Tymeslot" footer on scheduling pages Cloud

Smarter availability and richer meeting types.

• Duration-aware availability gap logic with high-performance ETS caching
• Microsoft Outlook availability hardening and Teams meeting creation on booking
• Multiple configurable reminders per meeting type
• Slug-based meeting type URLs

A full dashboard redesign and embeddable booking.

• Complete dashboard and UI redesign with a modern token-based design system
• Booking widget embedding for any website, with per-domain security controls
• Booking page internationalisation and localisation for international guests
• Pluggable calendar architecture with fault-tolerant background sync workers
• Unified webhook notifications dashboard with delivery resilience and retry logic
• Redesigned transactional email templates
• Session and OAuth security hardening

The first Tymeslot release.

• Customisable meeting types with availability rules, buffer times, and daily booking limits
• Google Calendar and Microsoft Outlook integration — availability synced automatically
• Booking confirmation and reminder emails
• OAuth and password-based authentication

Internal pre-push hook and core-sync tooling fixes.

All-day recurring event handling and standalone build fixes.

Calendar data backfill and test-isolation fixes.

Type-spec corrections and security and test reliability fixes.

A Google Calendar OAuth scope and discovery crash fix.