2013-07-07 ago discontinued obsolete "isabelle print";
2013-06-25 ago prefer Safari for viewing PDF files, which appears to be better behaved than Preview concerning re-opening recent files (Mountain Lion);
2013-05-17 ago discontinued obsolete isabelle usedir, mkdir, make;
2013-05-14 ago more generous java resources via ISABELLE_BUILD_JAVA_OPTIONS;
2013-05-12 ago decentralized historic settings;
2013-03-09 ago accomodate encrypted file-system on linux;
2012-11-25 ago eval PDF_VIEWER/DVI_VIEWER command line, which allows additional quotes for program name, for example;
2012-08-29 ago provide polyml-5.4.1 as regular component;
2012-08-17 ago added "isabelle components" tool;
2012-07-28 ago discontinued special treatment of Proof General;
2012-07-27 ago proper shell variable;
2012-07-24 ago further imitation of ISABELLE_USEDIR_OPTIONS via options;
2012-07-23 ago tuned;
2012-07-23 ago updated smlnj settings;
2012-07-06 ago discontinued odd XSYMBOL_INSTALLFONTS, which is private to PG-3.7.x ( no longer exists);
2012-07-05 ago slightly modernized ISABELLE_GHC etc. -- /usr/bin is more likely to provide it by default (notably on macbroy2[0-9] and lxbroy*);
2012-04-25 ago smarter PDF_VIEWER defaults, based on hints by Lars Noschinski;
2012-04-24 ago prefer evince over old xpdf -- NB: x86-cygwin bundles its own application;
2012-04-22 ago USER_HOME settings variable points to cross-platform user home directory;
2012-04-01 ago removed old HOL4 import -- corresponding exporter is lost, code is broken, no users known, maintenance nightmare
2012-03-28 ago clarified ISABELLE_JDK_HOME: derive from running JVM, but ignore accidental JAVA_HOME;
2012-03-28 ago updated comments;
2012-03-24 ago ISABELLE_JDK_HOME settings variable points to JDK with javac and jar (not just JRE);
2012-03-18 ago less noisy Isabelle/Scala build process;
2012-01-11 ago more robust ISABELLE_HOME_USER for repository versions -- some versions of Emacs interpret foo//bar as /bar even on the command-line (unlike regular POSIX semantics);
2011-10-15 ago updated to polyml-5.4.1;
2011-09-18 ago discontinued hard-wired JAVA_HOME treatment for Mac OS X (cf. f471a2fb9a95), which can cause confusions of "isabelle java" vs. "isabelle scala" -- moved settings to external component;
2011-09-17 ago specific bundle for x86_64-linux, which is especially important for JRE due to its extra library dependencies;
2011-06-23 ago provide Isabelle/Scala environment as Java extension, instead of user classpath
2011-06-22 ago clarified default ML settings;
2011-06-20 ago simplified/generalized ISABELLE_FONTS handling;
2011-03-14 ago example settings for ISABELLE_GHC, ISABELLE_OCAML, ISABELLE_SWIPL;
2011-03-13 ago files are identified via SHA1 digests -- discontinued ISABELLE_FILE_IDENT;
2011-03-13 ago some cleanup of old-style settings;
2011-03-13 ago clarified ISABELLE_CSDP setting (formerly CSDP_EXE);
2011-01-18 ago Apple's way of locating java;
2011-01-10 ago updated for polyml-5.4.0;
2010-11-16 ago more robust determination of java executable;
2010-11-15 ago more robust treatment of spaces in file names;
2010-05-28 ago assume given SCALA_HOME, e.g. from component settings or external setup;
2010-05-22 ago use proper ISABELLE_PLATFORM instead of adhoc uname;
2010-05-22 ago rendering information and style sheets via settings;
2010-04-20 ago refer to THIS_JAVA dynamically, and treat ISABELLE_JAVA as static default -- relevant for nested JVM invocation within an existing Isabelle enviroment;
2010-04-19 ago polyml-platform script is superseded by ISABELLE_PLATFORM;
2010-04-17 ago improved ISABELLE_JAVA, based on THIS_JAVA of the actually running JVM;
2010-02-06 ago removed ever experimental support for Moscow ML -- hardly works anymore;
2010-01-04 ago discontinued special HOL_USEDIR_OPTIONS;
2009-11-29 ago deactivated default for E_HOME, SPASS_HOME -- now configured as components;
2009-11-09 ago setup for official Poly/ML 5.3.0, which is now the default;
2009-11-07 ago tuned ML_OPTIONS for SML/NJ -- for improved performance;
2009-08-28 ago PDF_VIEWER: more Unix-ish behaviour on Mac OS;
2009-08-22 ago removed jedit setup -- now a self-contained component (external);
2009-08-06 ago misc changes to SOS by Philipp Meyer:
2009-08-04 ago basic support for components (which imitate the usual Isabelle directory layout);
2009-07-30 ago ISABELLE_USEDIR_OPTIONS: -q 2 by default;
2009-07-19 ago parallel_proofs: more fine-grained control with optional parallel checking of nested Isar proofs;
2009-07-03 ago SCALA_HOME: proper line escapes for choosefrom;
2009-07-03 ago observe SCALA_HOME, if available;
2009-06-14 ago back to default -M max, with more robust interpretation of corresponding max_threads value;