2016-04-02 ago prefer infix operations;
2016-04-01 ago less bulky timing information, e.g. HOL 56913 ~> 672;
2016-03-26 ago obsolete -- done in Isabelle_Process.init_options;
2016-03-26 ago clarified use of options;
2016-03-26 ago tuned signature;
2016-03-18 ago clarified modules;
2016-03-15 ago ML save_state under control of Isabelle/Scala;
2016-03-12 ago clarified session build options: already provided by ML_Process;
2016-02-29 ago redundant -- already part of Session.finish;
2016-02-29 ago save heap more directly;
2015-10-10 ago more explicit HTML.symbols;
2015-10-09 ago output HTML text according to Isabelle/Scala Symbol.Interpretation;
2015-01-25 ago discontinued obsolete option "document_graph";
2015-01-25 ago provide session_graph.pdf via Isabelle/Scala;
2015-01-15 ago more informative build_theories_result: cumulative Runtime.exn_message;
2015-01-15 ago tuned;
2015-01-14 ago clarified build_theories: proper protocol handler;
2015-01-14 ago clarified build_theories;
2015-01-13 ago some support for PIDE batch session;
2014-12-22 ago system option "pretty_margin" is superseded by "thy_output_margin";
2014-12-18 ago suppress irrelevant timing messages (the majority);
2014-11-26 ago renamed "pairself" to "apply2", in accordance to @{apply 2};
2014-11-07 ago plain value Keywords.keywords, which might be used outside theory for bootstrap purposes;
2014-10-31 ago discontinued pointless option: timing is always on (overall theory only);
2014-04-22 ago tuned;
2014-04-17 ago tuned comments;
2014-04-17 ago tuned;
2014-04-17 ago tuned;
2014-04-11 ago explicit 'document_files' in session ROOT specifications;
2014-04-10 ago removed obsolete doc_dump option (see also 892061142ba6);
2014-02-13 ago explicit indication that redefining outer syntax commands is not supposed to happen -- NB: interactive mode requires global change of syntax;
2014-02-10 ago seal system channels at end of Pure bootstrap -- Isabelle/Scala provides official interfaces;
2013-12-11 ago support for polml-5.5.2;
2013-11-16 ago prefer explicit "document" flag -- eliminated stateful Present.no_document;
2013-08-26 ago added SHA1 library integrity test, which is invoked at compile time and Isabelle_Process run-time;
2013-08-02 ago tuned signature;
2013-07-19 ago just one option "skip_proofs", without direct access within the editor (it makes document processing stateful without strong reasons -- monotonic updates already handle goal forks smoothly);
2013-06-30 ago discontinued system option "proofs" -- global state of Proofterm.proofs is persistently compiled into HOL-Proofs image;
2013-06-30 ago backout dedd7952a62c: static "proofs" value within theory prevents later inferencing with different configuration;
2013-06-27 ago manage option "proofs" within theory context -- with minor overhead for primitive inferences;
2013-05-21 ago proper options;
2013-05-17 ago proper option quick_and_dirty;
2013-05-17 ago discontinued obsolete isabelle usedir, mkdir, make;
2013-05-16 ago some system options as context-sensitive config options;
2013-05-12 ago some system options as context-sensitive config options;
2013-05-12 ago full default options for Isabelle_Process and Build;
2013-04-09 ago add command timings (like document command status);
2013-04-09 ago just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
2013-04-09 ago clarified protocol_message undefinedness;
2013-03-27 ago more ambitious Goal.skip_proofs: covers Goal.prove forms as well, and do not insist in quick_and_dirty (for the sake of Isabelle/jEdit);
2013-03-13 ago clarified parallel_subproofs_saturation (blind guess) vs. parallel_subproofs_threshold (precient timing estimate);
2013-03-12 ago discontinued "isabelle usedir" option -r (reset session path);
2013-03-11 ago discontinued "isabelle usedir" option -P (remote path);
2013-02-20 ago more tight representation of command timing;
2013-02-19 ago recover timing information from old log files;
2013-02-19 ago support for build passing timings from Scala to ML;
2013-02-19 ago support for prescient timing information within command transactions;
2013-02-19 ago emit command_timing properties into build log;
2013-01-24 ago more efficient inlined properties, especially relevant for voluminous tasks trace;
2013-01-18 ago use inlined session name as title for charts;