RDFox provided by graph.build

The RDFox Console has a new login experience with support for both password-based and OpenID Connect authentication (RD-1620). See Section 12.3 for details of how to configure authentication.

The 'delta queries' feature (See Section 11.7) used to track changes to a knowledge graph is no longer experimental (RD-2062).

The dictionary that stores the resources in a data store has been optimized to reduce memory usage (RD-1971). The observed reductions depend heavily on the data set but from our testing 5% is typical and reductions of over 10% have been observed.

New Triple and Quad table types (triple-table-pi, quad-table-lg-pi and quad-table-sg-pi) have been added. The new table types use smaller indexes and thus consume less memory than their full indexing counterparts (RD-1968). The existing triple-table, quad-table-lg and quad-table-sg table types have been renamed to triple-table-fi, quad-table-lg-fi and quad-table-sg-fi respectively.

Added an API call and shell command to check the integrity of the server (RD-1962). See Section 16.3.3 and Section 15.2.5.

Added API support for session-based authentication (RD-1811). See Section 16.2.1.1.2.

Added support for authenticating external agents with client certificates (RD-2026). See Section 16.2.1.1.3.

Added new DAY_OF_THE_WEEK() function returning the weekday number (RD-2063). See Section 9.2.

The server-directory server parameter can now be set to the empty string to explicitly specify that no server directory should be used. This is useful for launching in-memory daemon processes.

The RDFox Console's SPARQL page now supports downloading result sets of arbitrary size (RD-1961). Downloading, very large result sets may require an increase in the value configured for the query-time-limit endpoint parameter (see Section 19.2).

The endpoint parameter credentials-passphrase can now be set via the RDFOX_ENDPOINT_CREDENTIALS_PASSPHRASE environment variable (RD-2131).

ETag values returned by the endpoint now include the content type of the response, if it has one. This improves cache control by browsers. See Section 16.17.1.2.

Non-printable characters and UNICODE surrogates can no longer be used in names (e.g. data store names, role names, etc.) (RD-1954, RD-1964). As part of this change, RDFox now also validates that the UTF-8 encoding of such names is valid.

Fixed an issue where RDFox shell variables could be expanded to multiple arguments/tokens within a single command (RD-1951).

Fixed an issue where RDFox could spuriously report an out of memory error when servicing multiple concurrent REST requests (RD-2035).

Fixed a crash when attempting to set the persistence data store parameter to a value other than off when the server has no server directory (RD-2081).

Fixed an apparent hang when certain operations were performed on a data store whose max-threads-used property was set to a value greater than the number of server threads (RD-2079).

Fixed a hang when casting some xsd:float and xsd:double values to xsd:decimal. It only affects non-zero values that should be rounded to zero (RD-2099).

Fixed an issue in JRDFox where exceptionally large individual results (e.g. strings longer than 15000 characters), could cause a hang (RD-2100).

Fixed an issue with the persistence of data stores loaded from one of the two binary formats. (RD-2115).

Fixed an issue where RDFox over-reported memory usage. If the optional -max-memory server parameter is set to a small value, this could cause the server to incorrectly reach the memory limit (RD-2122).