2.5.1

Welcome to Apache TsFile 2.5.1!
This milestone tracks the fixes and features planned for the next release, and everyone is welcome to pick up an issue here — bug fixes, test improvements, and new features alike.

If you would like to work on something, leave a comment on the issue so others know, and feel free to ask questions or share a design early.
New contributors are especially welcome: look for issues labeled "good first issue" and "help wanted". Contributions of every size are appreciated, and let us make 2.5.1 better together!

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2.5.1

[Feature] Support and verify reading TsFiles on NFS-mounted paths

[Feature][C++] Object storage (OSS) read and write support

[Feature] Allow non-decreasing (duplicate) timestamps when writing, behind an opt-in flag

[Feature] Support adding, dropping, and renaming columns (schema evolution)

[Feature] Add ASan/LSan coverage for Python bindings and C++ integration

[C++] ENABLE_ASAN builds do not instrument TsFile sources

[C++] Instrument TsFile sources in ENABLE_ASAN builds

Support dictionary encoding for numeric types (DOUBLE/FLOAT/INT32/INT64)

Add batch decode for RLE (FLOAT/DOUBLE) and GORILLA_V1 encodings

[Perf][C++] SIMD bit-unpack kernels run as portable fallbacks in default builds; add runtime AVX2 dispatch

[Perf][C++] Load a device's timeseries indexes with one pread instead of per-measurement reads

[Perf][C++] Bulk-copy contiguous BOUNDARY pages in the aligned reader

[Perf][C++] Avoid memcpy of the RLE pattern in read_length_and_bitwidth

[C++] Bloom filter hash does not match Java for non-ASCII paths, silently dropping series

Issues