Update documentation for VHDL-2019

2 files changed, 14 insertions, 6 deletions

diff --git a/doc/about.rst b/doc/about.rst
index 088f98b3a..c620efad3 100644
--- a/doc/about.rst
+++ b/doc/about.rst
@@ -42,7 +42,7 @@ At the same time, like a design written in another `HDL`, a set of VHDL sources
 :dfn:`synthesis tool` into a netlist, that is, a detailed gate-level implementation.
 
 The development of VHDL started in 1983 and the standard is named `IEEE <https://www.ieee.org/>`__ `1076`.
-Five revisions exist:
+Six revisions exist:
 `1987 <http://ieeexplore.ieee.org/document/26487/>`__,
 `1993 <http://ieeexplore.ieee.org/document/392561/>`__,
 `2002 <http://ieeexplore.ieee.org/document/1003477/>`__,
@@ -91,7 +91,8 @@ It supports the
 `1987 <http://ieeexplore.ieee.org/document/26487/>`__,
 `1993 <http://ieeexplore.ieee.org/document/392561/>`__ and
 `2002 <http://ieeexplore.ieee.org/document/1003477/>`__ revisions and, partially,
-`2008 <http://ieeexplore.ieee.org/document/4772740/>`__.
+`2008 <http://ieeexplore.ieee.org/document/4772740/>`__ and
+`2019 <https://ieeexplore.ieee.org/document/8938196/>`__.
 :wikipedia:`Property Specification Language (PSL) <Property_Specification_Language>` is also partially supported.
 
 Several third party projects are supported:
diff --git a/doc/using/ImplementationOfVHDL.rst b/doc/using/ImplementationOfVHDL.rst
index 42681dcc9..c0a39c276 100644
--- a/doc/using/ImplementationOfVHDL.rst
+++ b/doc/using/ImplementationOfVHDL.rst
@@ -31,6 +31,8 @@ VHDL standards
 
 .. index:: v08
 
+.. index:: v19
+
 Unfortunately, there are many versions of the VHDL
 language, and they aren't backward compatible.
 
@@ -67,7 +69,7 @@ Minor corrections were added by the 2002 revision of the VHDL standard. This
 revision is not fully backward compatible with VHDL-00 since, for example,
 the value of the `'instance_name` attribute has slightly changed.
 
-The latest version is 2008. Many features have been added, and GHDL
+The latest version is 2019. Many features have been added, and GHDL
 doesn't implement all of them.
 
 You can select the VHDL standard expected by GHDL with the
@@ -93,6 +95,9 @@ You can select the VHDL standard expected by GHDL with the
 08
   Select VHDL-2008 standard (partially implemented).
 
+19
+  Select VHDL-2019 standard (partially implemented).
+
 Multiple standards can be used in a design:
 
 +-----+----------------+
@@ -104,6 +109,8 @@ Multiple standards can be used in a design:
 +-----+----------------+
 |  08 |       08       |
 +-----+----------------+
+|  19 |       19       |
++-----+----------------+
 
 .. note::
 
@@ -175,7 +182,7 @@ GHDL understands embedded PSL annotations in VHDL files:
        ghdl -a -fpsl vhdl_design.vhdl
        ghdl -e vhdl_design
 
-PSL annotations (VHDL-2008 only)
+PSL annotations (VHDL-2008 and later)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Since VHDL-2008 PSL is integrated in the VHDL language. You can use
@@ -197,7 +204,7 @@ PSL in a VHDL(-2008) design without embedding it in comments.
        ghdl -a --std=08 vhdl_design.vhdl
        ghdl -e --std=08 vhdl_design
 
-PSL vunit files (VHDL-2008 / Synthesis only)
+PSL vunit files (VHDL-2008 and later, synthesis only)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 GHDL supports vunit (Verification Unit) files.
@@ -269,7 +276,7 @@ changed with the :option:`--work` option of GHDL.
 To keep the list of design units in a design library, GHDL creates
 library files. The name of these files is :file:`<LIB_NAME>-obj<GROUP>.cf`, where
 `<LIB_NAME>` is the name of the library, and `<GROUP>` the VHDL version (87,
-93 or 08) used to analyze the design units.
+93, 08, or 19) used to analyze the design units.
 
 For details on ``GROUP`` values see section :ref:`VHDL_standards`.