Sfd V1.23 -

Cause: v1.23 requires TLS 1.3 by default.
Solution: If you must interoperate with legacy v1.22 clients, set tls_min_version: TLSv1.2 in the global section, though this is discouraged.

To truly appreciate the upgrade, let’s look at a side-by-side comparison with v1.22.

| Feature | SFD v1.22 | SFD v1.23 | |---------|-----------|-----------| | Default TLS | 1.2 (optional 1.3) | 1.3 only | | Compression | gzip (fixed level 6) | zstd (levels 1-19) | | Congestion Control | Cubic (kernel-based) | User-space Adaptive ACC | | Partial File Handling | Checksum on complete only | Atomic rename + SHA-3 | | Logging Output | Human-readable text | JSON + structured logging | | Max File Size | 2 GB (32-bit limits) | 16 PB (64-bit native) | sfd v1.23

Moreover, memory footprint has been reduced by 18% in idle connections due to a new event-loop architecture using io_uring on Linux kernel 5.6+.

A financial services firm replaced rsync over SSH with sfd v1.23. Using atomic transactions and zstd level 19, they reduced nightly backup windows from 2 hours to 35 minutes. Cause: v1

If you’ve come across an SFD file with version 1.23, you’re most likely working with Synfig Studio – the open-source 2D animation software.
The .sfd extension stands for Synfig Document, and v1.23 refers to the file format version introduced around Synfig 1.4.0+.

We refactored the internal job queue, especially for sfd batch commands. If you regularly process large directories, you should notice significantly lower overhead. | Feature | SFD v1

SFD v1.23 — a short speculative fiction about a small firefighting drone (SFD) deployed in a near-future coastal city during a compact but intense emergency.