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If you’re interested in taking over the project, please let me know (just answer here).
What’s new in ICSdroid 1.4?
We have overhauled and rewritten ICSdroid to make it ready for the latest Android versions and to improve integration with other apps. (For the future, integration with DAVdroid is planned so that you can subscribe to CalDAV-advertised Webcal feeds with ICSdroid directly from DAVdroid.)
The new launcher icon:
hotfix for self-signed/custom certificates
minor bug fixes and optimizations