Update History

These update notes describe major updates relative to the baseline PYTHIA 8.100 version. However, they are less extensive than the corresponding update notes for PYTHIA 6. On the other hand, whereas the PYTHIA 6 manual is a static document, the PYTHIA 8 html/php pages are kept up to date for each subversion.

Important note:version 8.160 does introduce some elements of backwards incompatibility. Specifically, "multiple interactions", abbreviated MI, has been renamed "multiparton interactions", MPI. This affects many parts of the code and documentation. Also some features are deprecated, although remaining until the end of the 8.1xx version series.

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