Therion 6.3.4 (2025-04-08):

therion:

• added SKBB chimney symbol
• added UIS camp symbol [#624]
• on windows, Therion no longer uses PROJ_LIB env variable
  (it's used only in unit tests to easily switch between Proj versions)
• source is now reported when automatic declination calculation is out of range
• import coordinate system from 3D file [#648]
• improved documentation of valid team roles
• bugs fixed:
  • thbook fixes and updates [#641, #651, #630]
  • fixed UIS chimney symbol
  • fixed continuation-list crash [#632]
  • fixed NaN, Inf values in SQL export

xtherion:

• added Help/Logs... menu item and window
• context menu update for point extra: dist, from
• restructured XTherion chapter in thbook, add a mention of wtherion [#649]
• reverted removal of xtherion cmd wrapping on Windows [#639]

loch:

• fixed loch crashing on Wayland on non-Debian based distros (patch by Olly Betts)

infrastructure and compiler:

• CI: ubuntu-latest -> ubuntu-22.04 [#620]; use Ubuntu 24.04 in 'make' workflow
• CI: use windows registry data instead of PROJ_LIB
• CI: generate sha-256 checksums for the windows installer, source archives
  and thbook.pdf
• CMake: explicit static linking for img, QuickHull, lxTR, lxR2P [#619]
• Make: Ubuntu 24.04 fixes
• added support for compilation in Visual Studio [#621]
• fixed compatibility with C++17 and C++20 [#628]
• fixed missing breaks [#625], fix valid degree in bezier_pt() [#626],
  simplify thexception [#631], fix lifetime issues of thlogfile [#637],
  thlogfile::print() improvements [#643], removed thlogfile::printf() [#650]
• added simple unit tests [#634]

Therion 6.3.3 (2025-01-06):

infrastructure:

• fix a bug introduced in [#613] preventing building the Windows installer

Therion 6.3.2 (2025-01-06):

therion:

• SVG maps are now editable (map data is not in <defs> section any more)
• geomag data updated up to 2030
• splay shots removed from SHP 2D line layer (to be consistent with PDF;
  splay shots are included in 3D SHP files)
• code improvements: manual memory management cleanup [#604],
  refactoring of thpoint internal state [#611]
• documentation updates including #610, #615
• bugs fixed:
  • Proj canʼt find files in the user-writable directory on Windows
  • import .3d unmatched survey legs [#606]
  • fixed surface grid misalignment when CS of grid differs from output CS

xtherion:

• allow space in thconfig filename [#603]
• code improvements: replace obsolete ‛case’ with ‛switch’ [#612]

Windows installer:

• fixed shortcuts to thbook.pdf and CHANGES.txt

infrastructure:

• add several ‛diff’ tests, fix CSV database export [#609]
• CI: fix Windows installer version in GIT forks [#613]
• removed Ubuntu 20.04 CI job [#616]
• support for code coverage generation [#618]
• Proj 9.5.1 included to the testing script

Therion 6.3.1 (2024-11-22):

xtherion:

• revert the change introduced in 6.3.0 to allow spaces in the thconfig
  filename [#590] to fix file opening issues on Windows

Therion 6.3.0 (2024-11-20):

therion:

• REMOVED proj-auto initialization file option;
  remove it from your ini files if you use it
• support for Geospatial PDF maps added (custom georeferencing used in versions
  5.3-6.2.1 is not included in PDF maps any more)
• new layout option: geospatial on/off
• projection (*.prj) files associated with shapefiles are generated by Proj
  for all output projections;
  it's not possible to specify them in thcsdata.tcl any more
• use precise grid transformation for built-in OSGB:XY coordinate systems
• import splays from 3d files [#599]
• new 'require <version>' command [#598]
• thbook updates
• REMOVED Proj v4 and v5 compatibility; minimum supported Proj version is 6.3.1
• updated Survex img library [#567]
• old MetaPost output to PDF conversion functions removed from sources
  (they were unused since 6.0.0 release)
• bug fixes:
  • fix symbol-hide special (scale-bar|north-arrow) in XHTML output [#558]
  • fix order of layout copy commands [#563]
  • don't reset symbol-hide with symbol-set [#561]
  • improve th2 export [#573, #588]
  • import .3d shots with their correct survey name [#585]
  • KML entrance label: comment or name [#574]
  • fix import filter: exclude filtered stations [#583]
  • fix NaN coordinates if Z is undefined in Proj 9.2.0+
  • fix thcsdata.cxx generation
  • fix PROJ_LIB path handling
  • use linux line-ends in text outputs (TXT, SVG, HTML, XHTML, KML, SQL, CSV,
    XVI, TH2, PLT, VRML, 3DMF, BBOX) to ensure cross-platform uniformity
  • various smaller fixes [#559, #586]
• code refactoring [#576, #579, #580] and cleanup

xtherion:

• remove check for Img package [#566]
• allow space in thconfig filename [#590]

loch:

• bug fixes:
  • fix missing surface texture on Windows [#587] (thanks to switching to ucrt)

Windows installer:

• build environment changed from MSYS2/mingw64 to a more modern MSYS2/ucrt64;
  for Windows 7 and 8 users this may require to install UCRT libraries
  (https://learn.microsoft.com/en-us/cpp/windows/universal-crt-deployment)
  to run Therion, unless already installed by system updates

infrastructure:

• CI environments fixes and updates [#568, #575, #578, #589, #593]
• Windows CI: run unit tests; verify samples; enforce warnings [#600]
• drop make workflows on MacOSX and Windows CI
• Makefile fixes for fmtlib and VTK
• updates in test_proj.sh testing script
• Catch2 testing suite fixes [#595] and updates
• add SVG and XHTML samples; make sure that Proj needs proj.db in samples

Thanks to Matěj Plch and Thomas Holder for many contributions to this release.

Therion 6.2.1 (2024-03-20):

therion:

• Polish translation updated [#553]
• many C++/CMake/Makefile improvements and fixes by Matěj Plch
  [#535, #536, #537, #539, #541, #541, #542, #552]
• updated poly2tri library [#538]
• bugs fixed:
  • length can also be equal to depth change [#556]
  • std::sort() usage causing segmentation fault in some cases

xtherion:

• new setting $xth(gui,init_app_normalized) to allow disabling of window
  geometry adjustments when xtherion starts [#557]
• xtherion line artifact fixed [#554]

infrastructure:

• initial implementation of a devcontainer [#532]
• CI environments: fixes, macOS 13 added [#546, #551]

Therion 6.2.0 (2023-12-21):

therion:

• Windows version: only 64-bit Windows are supported now [#530]
• code fixes and improvements by Matěj Plch [#518, #522, #523, #524, #533]
• thbook fixes, mostly by Rodrigo Severo [#520, #525, #526]
• updated QuickHull library [#521]
• added support for Catch2 version 3 [#534]
• Proj 9.3.1 included to the test suite

loch:

• fixed compilation issues on Debian

infrastructure:

• installer: updated TeX and ImageMagick to use current, 64-bit binaries
• macOS 13 added to and macOS 11 removed from CI environments [#516, #529]

Therion 6.1.8 (2023-06-14):

therion:

• added coordinate transformation sample
• bugs fixed:
  • "no usable coordinate transformation found" issue when there is just one
    fixed station
  • fix irregularities in vertical grid markers
  • bug with area bedrock
  • various code fixes (NAN on windows, GCC 13 compatibility, includes
    reorganization, missing includes, incorect printf arguments)

infrastructure:

• CI fixes

Therion 6.1.7 (2023-04-23):

therion:

• allow custom fonts for map grid coordinates (see the \gridfont TeX macro)
• display negative coordinates in s_altitudebar_SKBB using an en-dash
  (-- ligature) instead of a hyphen as an approximation of the minus character
• various thbook updates
• C++ code modernization and fixes, including [#483, #484, #486, #487, #488,
  #491, #492, #493] by Matěj Plch
• samples reorganization: a common directory for tests; new test: inputrel
• bugs fixed:
  • wrong check for ICC profile type
  • hyphen used instead of minus in s_altitudebar
  • path not ending with slash in \includeprefix (TeX) and includeprefix (mpost)
  • thbook: document the usage of TeX registers [#485]

xtherion:

• bugs fixed:
  • fixed polyline to bezier conversion bug introduced in 6.1.4

infrastructure:

• therion no longer includes an internal copy of fmtlib
• system fmtlib is a mandatory dependency now
• updated GitHub Actions configuration
• CMake 3.16 required
• CMake: dependencies refactoring and other improvements [#498]
• bundled Catch2 updated to 2.13.10
• added extern/readme.txt

Therion 6.1.6 (2023-01-11):

therion:

• bugs fixed:
  • Incorrect output coordinates system [#482]
  • documentation fixes

infrastructure:

• updated release script