ICS Toolkit

1.3.0 Sep 10, 2026

Added

• Preview calendar imports with event selection, compatibility details, duplicate detection, cancellation, per-event results, retry, and session undo for unchanged imported events. Series that cannot be fully verified remain in Calendar with an explanation.
• Import supported advanced repeating rules and edited occurrences as complete series.
• Export multiple calendars as separate files or a combined ICS file; choose all dates, the next 12 months, or a custom inclusive date range. Bounded exports contain individual occurrences.
• Open ICS documents from Files and other apps, with a choice of editing or importing.
• Save named drafts, search and rename library entries, and display persistence failures without overwriting unreadable files.
• Choose weekly days and ordinal monthly recurrence patterns.
• Show Server Mode connection activity, troubleshooting steps, and a diagnostic report with calendar-property rejection reasons, without calendar content or credentials.
• Show the app version and build number beneath the Server Mode tile on the home screen.
• Replace the Help banner and long page with a list of topics that open on separate screens, including app information and a clickable © 2026 prawel.pl link.
• Provide Create ICS from Template and Export Calendar to ICS actions in Shortcuts.

Fixed

• Accept and retain calendar order, time zones, default reminders, and other client preferences in Server Mode, including for read-only calendars, to prevent repeated calendar-property update failures.
• Prevent the Active Connections display from flickering during brief reconnects by delaying decreases for two seconds; stopping the server clears it immediately.
• Fix Server Mode calendar moves when clients keep the event filename or use non-UUID filenames, including MOVE requests and creating the destination event before deleting the source.
• Keep moved events editable, preserve client filenames across restarts, and report moves and renames correctly during incremental synchronization without duplicate entries.
• Distinguish calendar conflicts from failed request conditions in Server Mode diagnostics instead of reporting every conflict as an event changed by another client.
• Keep all-day events without an explicit end date to one day; consume DURATION correctly, including daylight-saving changes, and reject malformed dates.
• Preserve imported meeting methods and attendee response, role, RSVP, and organizer metadata.
• Use shared time-zone serialization for single-event and calendar exports.
• Extract calendar writing and file operations from the editor and retire its duplicate private ICS parser and writer.

1.2.2 Sep 7, 2026

• Added calendar export: choose a device calendar, including read-only calendars, and save its synced events together in one ICS file or share the file with another app.
• Added a dedicated Export Calendar screen with calendar selection, progress, cancellation, event counts, and Save/Share ICS actions.
• Preserved repeating-event rules and edited occurrences in calendar exports, with stable event identifiers and shared time-zone definitions.
• Introduced a home screen with five prominent actions: Create Events, Edit Events, Export Calendars, Import Calendars, and Server Mode. Templates remain available in the event editor.
• Added search and event selection for multi-event ICS files, so an individual event can be edited and saved separately.
• Improved full-history calendar scanning, absolute reminders, all-day recurrence and exception dates, and historical and future time-zone handling in exported files.
• Updated Help for the new navigation and refreshed iPhone and iPad marketing images.

1.2.1 Aug 31, 2026

• Recognized Microsoft all-day event markers in incoming CalDAV events and included the compatibility marker when exporting all-day events.
• Fixed all-day event handling when syncing through CalDAV or adding events to Apple Calendar by clearing timed-event time zones and applying dates in the correct order.
• Normalized multiline locations and Apple structured addresses so repeated edits and syncs no longer accumulate escaped line breaks or inconsistent spacing.

1.2.0 Aug 21, 2026

• Added foreground-only Server Mode so Calendar on a Mac can read, create, update, and delete events in selected iPhone calendars over the same trusted local network.
• Added Bonjour discovery, Digest authentication, stored pairing credentials, calendar selection, connection instructions, live status, and automatic shutdown when the app enters the background.
• Added paged synchronization of historical events and incremental updates and deletions, with stable event identities and protection against stale edits.
• Added event copy and move between calendars, plus calendar creation, renaming, color, and description changes; remote calendar deletion is limited to calendars created through Server Mode.
• Preserved supported recurrence rules, edited occurrences, exclusions, reminders, structured locations, and Apple travel-time metadata during CalDAV sync, while retaining existing values when incoming data cannot be applied safely.
• Improved Apple Calendar pairing, initial event discovery, updates, duplication, and deletion, and corrected the exported end dates of all-day events.
• Refined the event editor, template library, and Server Mode setup, including an explicit local hostname and controls for preventing Auto-Lock.

1.1.0 Aug 20, 2026

• Renamed ICS Creator to ICS Toolkit and redesigned the event workspace, help screens, and app icon.
• Added daily, weekly, monthly, and yearly recurrence, multiple reminders, explicit time-zone selection, categories, status, visibility, and availability.
• Added compatibility review, destination-specific warnings, an event summary, and raw ICS preview before saving, sharing, or adding events to Apple Calendar.
• Added autosaved drafts and reusable templates, with refreshed dates and event identities when starting from a template.
• Added multi-event ICS import into a chosen writable calendar, with progress reporting, while retaining single-event editing.
• Improved import and export preservation of advanced recurrence, exceptions, alarms, calendar metadata, attachment filenames and MIME types, and unsupported properties that can be carried forward.
• Added meeting validation and stable event UIDs and revision tracking so invitation updates retain their identity.

1.0.4 Mar 2, 2026

• Added meeting invitations with organizer and attendee names and email addresses, plus RSVP requests for compatible calendar apps.
• Imported organizer and attendee details from existing invitations and exported meeting requests using METHOD:REQUEST.
• Improved Outlook and Exchange compatibility by recognizing Windows time-zone names and exporting recurring daylight-saving definitions, and added guidance for sending invitations.

1.0.2 Jan 13, 2026

• Started new events at the next full hour, preserved duration when moving the start time, and constrained end dates to valid ranges.
• Fixed imported dates being changed by editor updates and expanded support for folded ICS lines using spaces or tabs.
• Improved ICS compatibility with event UIDs, UTC timestamps, time-zone definitions, CRLF line endings, and UTF-8-aware line folding.
• Added event dates and times to exported filenames and improved focus behavior in location search.

1.0 Jan 7, 2026

• Introduced ICS Creator for iPhone and iPad, with timed and all-day events, titles, descriptions, locations, and links.
• Added ICS file import and export, embedded photo and file attachments, and direct saving to a selected Apple Calendar.
• Added place and address search, a calendar picker, and in-app help.