v1.2.0

Changes since v1.1.1

BigSpan and BigReadOnlySpan

• Added subsequence counting and searching, CountAny, and overlap detection.
• Added CommonPrefixLength, scalar StartsWith/EndsWith, comparer-aware search overloads, and multi-element splitting.
• Added reversing, replacement, SearchValues<T>-based replacement, generic-comparer sorting, and paired key/value sorting.
• Added BigReadOnlySpan<T>.CastUp<TDerived>().
• Updated the single-element BigReadOnlySpan<T> constructor to accept a ref readonly value.
• Pointer-based BigSpan<T> and BigReadOnlySpan<T> constructors now reject types containing managed references, matching the safety contract of the corresponding .NET span APIs.

BigArray

• Added range-aware binary search, forward and backward searches, and reversing.
• Added predicate-based FindIndex and FindLastIndex overloads.
• Added Array.Copy-style operations with range and overlapping-copy support.
• Added paired key/value Array.Sort-style overloads.

MemoryMarshal integration

Added BigSpan<T> and BigReadOnlySpan<T> support for:

• CreateBigReadOnlySpan
• AsBytes and Cast
• AsRef
• Read and TryRead
• Write and TryWrite

Full Changelog: v1.1.1...v1.2.0