Changes since ReadStat 1.1.8:

• SAV reader: Improved support for Asian code pages #263
• SAV reader: Improved support for Very Long String records #287
• SAS reader: Improved support for RLE decompression #245 #253
• SAS reader: Support 16MiB page sizes #286
• SAS catalog reader: Fix bugs reading big-endian files #293
• SAS catalog reader: Allow formats with no labels #290
• SAS catalog reader: Check for long names in 64-bit files #291
• Improved compatibility with -Wstrict-prototypes #295
• Replace sprintf with snprintf #292

Changes since ReadStat 1.1.7:

• XPT reader/writer: Improved support for format strings #257 #258
• DTA writer: Fix off-by-one error in v,o indexing for string refs #270
• SAV/DTA writers: Improved checking of non-ASCII characters #256
• SAS7BDAT reader: Fix use-after-free error #273
• Build: Link to libm on GNU systems #255
• SAS commands: Support more syntax
• SPSS commands: Make file names optional

Changes since 1.1.7:

• XPT reader/writer: Improved support for format strings #257 #258
• SAV/DTA writers: Improved checking of non-ASCII characters #256
• Build: Link to libm on GNU systems #255
• SAS commands: Support more syntax
• SPSS commands: Make file names optional

Changes since ReadStat 1.1.6:

• SAV writer: Permit missing ranges for integer variables #251
• SAV writer: Fix format-truncation warning #247
• DTA reader/writer: Improved support for string refs on older platforms
• DTA reader: Fix incorrect ordering in StrL comparison functions #248
• SAS7BDAT writer: Improved support for tagged missing values on big-endian platforms
• SAS readers: Allow header sizes up to 16MiB #249
• Visual Studio: Fix paths to make them consistent between x86 and x64 archs #242

Changes since RC0:

• SAV writer: Permit missing ranges for integer variables #251
• SAV writer: Fix format-truncation warning #247
• DTA reader/writer: Improved support for string refs on older platforms
• SAS7BDAT writer: Improved support for tagged missing values on big-endian platforms

Changes since ReadStat 1.1.6:

• SAS readers: Allow header sizes up to 16MiB #249
• Stata reader: Fix incorrect ordering in StrL comparison functions #248
• Visual Studio: Fix paths to make them consistent between x86 and x64 archs #242

Changes since ReadStat 1.1.5:

• Migrate build to GitHub Actions
• Regenerate parsers with Ragel 7 and update build script
• SAS7BDAT reader: Improved large file support on Windows #226
• SAV reader: Skip null bytes in UTF-8 data tidyverse/haven#560
• SAV reader: Fix hang (oss-fuzz/23485)
• DTA reader: Disallow str0 type (fixes hang)
• DTA reader: Fix encoding error when garbage values are present beyond the end of a string
• Command file readers: Fix integer overflow (oss-fuzz/15778)
• extract_metadata: Implement duration support #223 (thanks to @basgys)
• Support for SAS files created with SAS Visual Forecaster #232
• Report format widths for date/time SAS formats #233
• Document the meaning of a -1 return value from readstat_get_row_count #234
• Fix SAS file creation / modification times on Windows #238 #240

• Support for building with MSVC #214 (thanks to @zebrys and @jonathon-love)
• CLI tools: Support non-ASCII file paths on Windows #200 #216 (thanks to @zebrys)
• DTA reader: Ignore bad timestamps
• DTA writer: Fix memory leak
• DTA writer: Improved support for empty value labels #219
• POR reader: Improved support for date/time formats #160
• SAS7BDAT reader: Added support for reading the dataset label #180 #213 (thanks to @reikoch)
• SAS7BDAT reader: Improved detection of compressed files
• SAS7BDAT reader: Improved bounds checking OSS-Fuzz/28312
• SAS7BDAT reader: Support for more character encodings
• SAV reader: Tolerate illegal lowercase variable names #217
• SAV reader: Better support for non-UTF-8 variable names
• SAV reader: Fix format widths for very long strings Roche/pyreadstat#77
• SAV reader: Fix undefined behavior with negative row counts OSS-Fuzz/23423

• SAS7BDAT reader: Add support for binary-compressed files #21
• XPT v8 writer: Improve compatibility with SAS #207 (thanks to @reikoch)
• XPT reader: Fix reading of long variable names #208 (thanks to @reikoch)
• SAS readers: Support for more character encodings
• SAV reader: Clients sometimes received truncated UTF-8 strings Roche/pyreadstat#67
• SPSS writers: Improve compatibility with PSPP with DATETIME fields #211 Roche/pyreadstat#69
• All formats: Improved support for setting / getting the display_width #210 Roche/pyreadstat#72

Thanks to @ofajardo for the many bug reports and testing.

• Fix warnings when compiling with GCC 10 #202
• SAS RLE compressor: Fixes for large files #201
• SAV reader: Improved support for UTF-8 column names #206
• SAV reader: Return a better error message if the magic number doesn't match
• SAV reader: Support for dash-separated timestamps