re-use resources from session;

clarified Document.length -- independent of text_length;

more robust shutdown;

watcher for file-system events;

tuned comments;

tuned;

publish extension on Visual Studio Marketplace;

updated VSCode extension to "isabelle vscode_server";

merged

DiagnosticSeverity according to implementation https://github.com/Microsoft/vscode-languageserver-node instead of documentation https://github.com/Microsoft/language-server-protocol/blob/master/protocol.md;

support for syslog messages; clarified shutdown;

prefer stable state -- reduce repeated diagnostics;

more uniform pending_input / pending_output; explicit Document_Model.uri; tuned;

unused;

precise full_range and thus proper try_restrict in Snapshot.cumulate;

clarified protocol errors;

clarified signature;

unused;

clarified options;

clarified signature: maintan Text.Length within Line.Document;

clarified modules;

clarified signature: explicit Length to avoid implicit mistakes;

tuned;

more uniform treatment of input/output wrt. client; support for diagnistic messages; misc tuning;

tuned;

more uniform treatment of "bad" like other messages (with serial number);

clarified modules;

support for diagnostics;

print constants in 'primrec', 'primcorec(ursive)', 'corec(ursive)', like in 'definition' and 'fun(ction)'

more uniform treatment of file name vs. theory name and special header;