GUI: fixed an issue with loading gzipped multiple extension fits files with the -multiframe option. MMT: updated Binospec template. CATALOG: GUI now uses a conesearch radius for query. SIA: GUI now uses a conesearch radius for query. FITSY++: be sure to output REAL header keywords with scientific notation with capital 'E', per FITS standard. CATALOG: add Edit menu to Symbol dialog. NRRD: fixed a problem exporting, an extra byte was being written. IIS: fixed a problem introduced in version 7.6 with the colormap. IIS: fixed a problem the values displayed on the colorbar. API: All new parser/lexer for each command, backward compatible API. Parser will detect syntax errors, and suggest options. CATALOG: updated catalog menu items for GAIA, UCAC, and SDSS. REGIONS: added support for compressed regions files. CUBE: fixed cube slice dialog slider. ANALYSIS: added current slice control to maker analysis plot 3d. BACKUP: fixed an issue when data range is NAN. BIN: fixed an issue introduced in version 7.6 where repeat bin calls incorrectly scaled markers and contours. REGION: fixed an problem introduced in version 7.6 with angles with a wcs which is flipped in X. GUI: fixed an problem introduced in version 7.6 with bracket filename options in standard dialog boxes. WCS: implemented all new wcs support based on AST. DS9 is fully compliant with FITS WCS Papers I, II, III. CUBE: plot3d current slice is coordinated with cube dialog box. BIN: fixed a problem in the case of a RGB image has a binned layer, changing bin parameters in other layers caused cursor movement. REGION: plot2d now extends across mosaic boundries. BACKUP: restore crosshair cursor. SMOOTH: fixed an issue with old backups. REGIONS: accept 'point' as a region shape, defaulting to 'boxcircle'. REGIONS: fixed a problem with plot3d, incorrectly calculating an index into the data cube. GUI: removed old keyboard doc button. DOC: cleaned up html documentation. WCS: fix a memory ref with short axes symbols. WCS: fix a problem starting in crosshair mode set in prefs and infobox update with 2D frame. PREFS: fix a problem updating from 7.6 to 8.0. GUI: use unicode for deg symbol in infobox, previous char caused conflicts. AST: updated to version 8.6.3. Fixed illegal memory access issue. TKBLT: updated to version 3.2.11. Fixed axis label issue. BIN: use old style Einstein WCS keywords if present. PAN: tweak pan parser for backward compatibility. BIN: fixed old style Einstein WCS keyword CRVAL2 REGION: Plot2d,Plot3d,Histogram- use BUNIT keyword if available. WCS: Tweaked -TAB code to find WCS HDU extension easier. CONTOUR: fixed contour parser nlevels problem, again. CONTOUR: changed contour limits behavior. Now set mode to USER when limits are set and update dialog accordingly. API: Tweaked parsers to fix issue with XPA/SAMP error messages. FITS: command -url: accept mime type 'text' as 'fits'. API: fixed an issue with CommReturn, so that it returns at the top level. SAMP: added -keepalive to http::geturl calls in cases of retreiveing large files from servers that use Transport-encoding: chunked. SAMP: reset http token in case of error. CUBE: fixed an issue with properly rounding slice number.