Changelog

The midas git repository uses tags to denote specific releases. Tags are of the format midas-YEAR-MONTH-SUFFIX, e.g. midas-2019-06-b. This page details the major changes in each release, and highlights how to update client code to adapt to any changes that are not backwards-compatible.

2019-06

Releases midas-2019-06-a, midas-2019-06-b. Relevant elog entries - 1564 (midas-2019-06 with cmake and c++) and 1526 (How to convert C midas frontends to C++).

Improvements

• Migration from C to C++. You will have to make changes to your clients (see upgrade guide below).
• Ability to compile using cmake/cmake3 as well as make. To use cmake, you can either build manually with mkdir build; cd build; cmake ..; make; make install, or use the handy shortcut make cmake3. Note that the location where libraries and executables are built has changed - the OS-specific subdirectories (e.g. /linux/lib) has been replaced by a common /lib and /bin.
• mxml and mscb are now included as git submodules. See the "upgrade guide" instructions for how to checkout the latest version of these modules.

Known issues

• cmake/cmake3 - ZLIB support is not detected, so gzipped files cannot be written by the logger. Will be fixed in the next release, or you can update midas to a commit after August 2.
• mxml can segfault due to a double free. Will be fixed in the next release, or you can update mxml to commit f6fc49d: cd mxml; git checkout f6fc49d; cd .. and re-compile midas.

Upgrade guide

Updating midas:

1. Grab the new code

git checkout develop git pull git checkout midas-2019-06-b git pull git submodule update --init # this will checkout correct versions of mxml and mscb

1. Tidy up the old build - be sure to delete the deprecated linux directory!

make clean make cclean rm -rf linux/bin rm -rf linux/lib rmdir linux

1. Build the new midas

make cmake3 # or "make cmake" on ubuntu and macos