Status update 2026-04

This article details recent technical improvements to pimsync, a synchronization tool. The author optimized WebCal calendar processing by only copying relevant timezones to event files instead of all timezones, reducing file sizes and parsing overhead. Other enhancements include support for colon-separated TLS fingerprints in configuration, implementation of TCP-stream-level I/O timeouts for robust network handling, and workarounds for OpenBSD timer rounding issues. The developer also cleaned up stale database columns and implemented data migrations. The article discusses challenges with the underlying hyper library's legacy HTTP client and plans for upstream contributions.