Public alpha 136

• file API supports makeLink() message
• experimental directory API
• -assoc-unif-depth= flag to control A/AU unification search

Public alpha 135

• second control-C within a second now returns to command line
• fixed bug in deleteTimer() which would cause a later crash
• empty line is treated as implicit step command in debugger
• getLine() is now nonblocking
• changed semantics of stopTimer()
• standard streams now accept bad messages and return streamError()

Public alpha 134

• experimental time API

Public alpha 133

• fixed bugs in the processing of strategies in parameterized views
• fixed bug where irredundant prefix was echoed
• fixed bug where waiting on multiple file descriptors could ignore
  some of them on platforms using pselect() such as Mac
• constraint propagation gets more A/AU unification cases
• two optimizations to reduce the number of redundant AU-unifiers
• meta-interpreters running in the orginal process now have the
  same error semantics as meta-interpreters running in new processes
• file API has new error semantics
• missing start op-hook added to file.maude
• removeFile() message added to file.maude
• fixed a bug where irredundant unification was ignoring the
  last variable in each subsumption check
• removed destructive generation of order-sorted unifiers because
  it breaks irredundant unification (which assume unifiers can
  be retained) and generates denormalized unifiers anyway

Maude 3.1

• Support for unification modulo associativity-identity,
• Support for the generation of irredundant unifiers,
• Support for the filtering of variant unifiers using variant subsumption,
• Support for the generation of variant matchers,
• An implementation of Unix processes as Maude external objects,
• Several improvements in the presentation of results,
• Several improvements in the handling of control-c,
• Some bugs fixed, and
• Some improvements in syntax error detection and recovering.

Maude 3.0

• Symbolic reachability analysis of concurrent systems using narrowing,
• A strategy language for controlling rewriting,
• Three new external objects (files, standard streams and meta-interpreters),
• Parameterized views,
• A connection to SMT solvers CVC4 and Yices 2,
• Some bugs fixed, and
• Some improvements in syntax error detection and recovering.