Changes in gap-pkg-hap 1.75:

• Remove lib/Classical
• Fix extra and missing brackets in certain barcodes
• Add G-CW quotients
• Add functions to compute finite projective spaces
• Add coset graphs
• Avoid use of redundant code in sl2o.gi
• Add missing functions to hap.gd
• New implementation of finite projective line
• New implementation of congruence subgroups for SL2
• Add method for non-prime n in SL2
• Fix function that finds a canonical representation
• Add extra methods for SL2 and SL3
• Add computations for the transversal in the extra methods
• Fix IsPrime(n) for SL2
• Fix AmbientTree
• Fix AmbientTreeiDisplay
• Add ProjectiveSpace as attribute of the congruence subgroup
• Add CosetPosFunctions for power of primes
• Rename: CosetRepFunction → AmbientRepresentation and CosetPosFunction → AmbientPosition
• Change polymaking from Suggested to Required

Changes in gap-pkg-hapcryst 0.2.0:

• Require GAP ≥ 4.12
• Require polymaking ≥ 0.8.6
• Change TranslationsToBox back to returning a list, resolve inconsistencies between its documentation and behavior.
• Fix DimensionSquareMat to actually reject non-square matrices, and also to return fail instead of raising an error for bad inputs (as documented)
• Fix IsSquareMat to not return true for all matrices
• Various janitorial changes