Standard_Thread for isabelle command-line tools;

tuned -- Command_Line.tool is already part of Isabelle_Tool;

clarified signature;

clarified signature;

thread pool with Standard_Thread workers; tuned signature;

clarified signature;

support for uninterruptible execution;

tuned -- prefer Config.T over Data;

proper "editor_tracing_messages=0" as in "isabelle dump";

tuned;

clarified build_options vs. job options;

more official handling of protocol messages, including export;

less redundant markup reports;

more accurate context position reports;

clarified signature;

clarified signature;

tuned;

clarified signature;

tuned signature;

proper treatment of startup errors, notably for Pure ROOT.ML;

proper treatment of protocol exceptions and prover termination: avoid session.stop while saving image;

merged

Added tag Isabelle2020-RC4 for changeset 1f3d9a9dd42a

more robust, notably wrt. interrupts;

merged

more NEWS;

clarified messages: indicate termination explicitly;

avoid vacous type variable, due to "potentially redundant" shyps in Thm.unconstrainT;

Added tag Isabelle2020-RC3 for changeset 7fe1a344404a

updated to current cygwin-20200323, after 3.1.4-1 from 19-Feb-2020;

avoid jdk-11.0.6+10: it shows problem "S8217731: Font rendering and glyph spacing changed from jdk-8 to jdk-11" https://bugs.openjdk.java.net/browse/JDK-8217731 even though the changelog claims to have resolved this;

clarified signature: more direct Isabelle_Process.EXIT;

proper arguments of protocol function;

merged

more robust: process stdout on Windows may contain CR;

clarified signature; more inlined protocol messages;

prefer system option: easier to make it default;

support multiple sessions, notably for "isabelle build -P -j2";

pretty formatting as in Isabelle/ML;

output prover messages;

clarified signature;

clarified signature: more robust;

proper parent base;

traditional print_mode for batch build;

proper support for "isabelle build -P Pure";

clarified signature: more robust bootstrap base;

proper startup for Pure: its use_prelude produces stdout before stderr protocol init;

proper context for loading Pure;

clarified signature of ML_Process vs. Isabelle_Process: proper support for "isabelle build -P -b";

close socket explicitly (idempotent);

more robust message_context and shutdown, e.g. after errors in protocol loop (see also 3f02bc5a5a03);

simplified code and proofs

automated proof

merged

cleaned proofs

clarified signature;

more accurate treatment of errors;

clarified modules: global quasi-scope for markers;

redunant simp rule

merged

more ugly old proofs

merged

tuned;

clarified modules;

clarified signature: more explicit type Protocol_Message.Marker;

tuned signature -- follow Scala;

tuned;

more explicit type Protocol_Message.Marker; tuned;

clarified protocol messages: explicitly use physical_writeln, always encode_lines;

tuned;

tuned whitespace;

more tidying up of old apply-proofs

merged

tuned;

tuned;

tuned;

eliminated pointless flag (see also 6533ceee4cd7);

tuned;

merged

structured a lot of ancient, horrible proofs

clarified Isabelle_Process phases;

clarified order: update syslog before handling exit;

tuned error message;

clarified signature: more robust startup_join;

merged

tuned;

misc tuning based on hints by IntelliJ IDEA;

clarified signature;

clarified signature;

clarified signature;

clarified signature;

tuned;

clarified signature: more accurate session_base_info.sessions_structure;

clarified signature;

added lemma

merged

updated to more modern style

updated to scala-2.12.11;

merged

put back Nat.le_diff_conv2 because AUTO2 doesn't work with Groups.le_diff_conv2

merged

new-style Greater lemmas

tidying up some horrible proofs

avoid jdk-11.0.6+10: it shows problem "S8217731: Font rendering and glyph spacing changed from jdk-8 to jdk-11" https://bugs.openjdk.java.net/browse/JDK-8217731 even though the changelog claims to have resolved this;

tuned;

merged;

more NEWS;

delete Isabelle distribution archive after use;

documentation for "isabelle build_docker";

updated for release;

tuned bib;

more documentation on view.antiAlias, not just NEWS;

more NEWS;

avoid premature crash due to missing session parents/imports;

avoid accidental update of base session sources (following documentation in "system" manual);

avoid duplicate stderr output in isabelle build -v, e.g. "Timing ..." (amending a829207b32a3);

prefer subpixel antialiasing by default: rendering of text is usually much faster, notably on Linux (see also 093ab1a99eb6 and f610115ca3d0);

slightly more explicit error, without going into the graph of proof futures;

more robust re-use of $ISABELLE_TMP_PREFIX (amending c1597167563e);

prefer strict qualification (default for 'interpretation', see 461ee3e49ad3) as proposed by Pedro Sánchez Terraf;