8 files changed, 34 insertions, 12 deletions
diff --git a/Master/texmf-dist/doc/latex/siunitx/CHANGELOG.md b/Master/texmf-dist/doc/latex/siunitx/CHANGELOG.md
index 87c775ca83a..38db79ac180 100644
--- a/Master/texmf-dist/doc/latex/siunitx/CHANGELOG.md
+++ b/Master/texmf-dist/doc/latex/siunitx/CHANGELOG.md
@@ -7,6 +7,12 @@ Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to
 
 ## [Unreleased]
 
+## [v3.3.14] - 2024-04-15
+
+### Fixed
+- Extension of multiple uncertainties when main value is less precise (see
+  issue [\#727](https://github.com/josephwright/siunitx/issues/727))
+
 ## [v3.3.13] - 2024-04-12
 
 ### Fixed
@@ -339,7 +345,7 @@ Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to
 - Options `digit-group-size`, `digit-group-first-size` and
   `digit-group-other-size` to control digit grouping
 - Options `display-per-mode` and `inline-per-mode` to offer additional
-  flexiblity in `per-mode` control
+  flexibility in `per-mode` control
 - Option `per-symbol-script-correction`
 - Option `power-half-as-sqrt`
 - Option `retain-negative-zero`
@@ -1396,7 +1402,7 @@ Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to
 - Allow for `bidi`/RTL when applying `\text`
 - Search-and-replace in UTF-8 literal units
 - Load binary-units only when requested (issue [\#201](https://github.com/josephwright/siunitx/issues/201))
-- Disable `\hightlight` in bookmarks (issue [\#207](https://github.com/josephwright/siunitx/issues/207))
+- Disable `\highlight` in bookmarks (issue [\#207](https://github.com/josephwright/siunitx/issues/207))
 
 ## [v2.5l] - 2012-11-21
 
@@ -2086,7 +2092,8 @@ Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to
 ### Added
 - First public testing release (as `si`)
 
-[Unreleased]: https://github.com/josephwright/siunitx/compare/v3.3.13...HEAD
+[Unreleased]: https://github.com/josephwright/siunitx/compare/v3.3.14...HEAD
+[v3.3.14]: https://github.com/josephwright/siunitx/compare/v3.3.13...v3.3.14
 [v3.3.13]: https://github.com/josephwright/siunitx/compare/v3.3.12...v3.3.13
 [v3.3.12]: https://github.com/josephwright/siunitx/compare/v3.3.11...v3.3.12
 [v3.3.11]: https://github.com/josephwright/siunitx/compare/v3.3.10...v3.3.11
diff --git a/Master/texmf-dist/doc/latex/siunitx/siunitx-code.pdf b/Master/texmf-dist/doc/latex/siunitx/siunitx-code.pdf
index cf002514278..7c2b6e2b653 100644
--- a/Master/texmf-dist/doc/latex/siunitx/siunitx-code.pdf
+++ b/Master/texmf-dist/doc/latex/siunitx/siunitx-code.pdf
diff --git a/Master/texmf-dist/doc/latex/siunitx/siunitx.pdf b/Master/texmf-dist/doc/latex/siunitx/siunitx.pdf
index 8bd9cefb62c..15e5ab256a5 100644
--- a/Master/texmf-dist/doc/latex/siunitx/siunitx.pdf
+++ b/Master/texmf-dist/doc/latex/siunitx/siunitx.pdf
diff --git a/Master/texmf-dist/source/latex/siunitx/siunitx-abbreviation.dtx b/Master/texmf-dist/source/latex/siunitx/siunitx-abbreviation.dtx
index f1235463899..9d99fed92e7 100644
--- a/Master/texmf-dist/source/latex/siunitx/siunitx-abbreviation.dtx
+++ b/Master/texmf-dist/source/latex/siunitx/siunitx-abbreviation.dtx
@@ -40,7 +40,7 @@
 % \GetFileInfo{siunitx.sty}
 %
 % \title{^^A
-%   \pkg{siunitx-abbreviations} -- Abbreviatons^^A
+%   \pkg{siunitx-abbreviations} -- Abbreviations^^A
 %   \thanks{This file describes \fileversion,
 %     last revised \filedate.}^^A
 % }
diff --git a/Master/texmf-dist/source/latex/siunitx/siunitx-number.dtx b/Master/texmf-dist/source/latex/siunitx/siunitx-number.dtx
index cfa4a03e259..2b875143759 100644
--- a/Master/texmf-dist/source/latex/siunitx/siunitx-number.dtx
+++ b/Master/texmf-dist/source/latex/siunitx/siunitx-number.dtx
@@ -1117,9 +1117,11 @@
 %   }
 % \begin{macro}[EXP]
 %   {\@@_parse_combine_uncert:nnnnnn, \@@_parse_combine_uncert:ennnnn}
+% \begin{macro}[EXP]{\@@_parse_combine_uncert_aux:nn}
 % \begin{macro}[EXP]
 %   {\@@_parse_combine_uncert:nnnnnnn, \@@_parse_combine_uncert:ennnnnn}
-% \begin{macro}[EXP]{\@@_parse_combine_uncert:nnnnn}
+% \begin{macro}[EXP]
+%   {\@@_parse_combine_uncert:nnnnn, \@@_parse_combine_uncert:nnenn}
 % \begin{macro}[EXP]
 %   {
 %     \@@_parse_combine_uncert_aux:nnnn ,
@@ -1196,11 +1198,16 @@
           {#3} {#4} {#5} {#6} { #7 #1 }
       }
       {
-        \@@_parse_combine_uncert:nnnnn
-          { #3 #1 } {#4} {#5} {#6} {#7}
+        \@@_parse_combine_uncert:nnenn { #3 #1 } {#4}
+          {
+            \tl_map_tokens:nn {#5}
+              { \@@_parse_combine_uncert_aux:nn {#1} }
+          }
+          {#6} {#7}
       }
   }
 \cs_generate_variant:Nn \@@_parse_combine_uncert:nnnnnnn { e }
+\cs_new:Npn \@@_parse_combine_uncert_aux:nn #1#2 { {#2#1} }
 %    \end{macrocode}
 %   We now ensure that the decimal part is never entirely blank \emph{if} there
 %   are decimal-part uncertainty digits. There is also a need to handle the
@@ -1224,6 +1231,7 @@
        {#2}
        {#3}
   }
+\cs_generate_variant:Nn \@@_parse_combine_uncert:nnnnn { nne }
 \cs_new:Npn \@@_parse_combine_uncert_aux:nnnn #1#2#3#4
   {
     \@@_parse_combine_uncert_loop:neennnn
@@ -1282,6 +1290,7 @@
 % \end{macro}
 % \end{macro}
 % \end{macro}
+% \end{macro}
 %
 % \begin{macro}{\@@_parse_comparator:}
 % \begin{macro}{\@@_parse_comparator_aux:Nw}
diff --git a/Master/texmf-dist/source/latex/siunitx/siunitx-unit.dtx b/Master/texmf-dist/source/latex/siunitx/siunitx-unit.dtx
index 2c9c1efb138..a7fd28e8bc0 100644
--- a/Master/texmf-dist/source/latex/siunitx/siunitx-unit.dtx
+++ b/Master/texmf-dist/source/latex/siunitx/siunitx-unit.dtx
@@ -272,7 +272,7 @@
 % \end{variable}
 %
 % \begin{variable}{\l_siunitx_unit_fraction_tl}
-%    The fraction function which is applied whne constructing fractional units:
+%    The fraction function which is applied when constructing fractional units:
 %    set by |fraction-command|.
 % \end{variable}
 %
diff --git a/Master/texmf-dist/source/latex/siunitx/siunitx.dtx b/Master/texmf-dist/source/latex/siunitx/siunitx.dtx
index 0d79cd5fde1..34a38b864a7 100644
--- a/Master/texmf-dist/source/latex/siunitx/siunitx.dtx
+++ b/Master/texmf-dist/source/latex/siunitx/siunitx.dtx
@@ -121,7 +121,7 @@
 %
 % Identify the package and give the over all version information.
 %    \begin{macrocode}
-\ProvidesExplPackage {siunitx} {2024-04-12} {3.3.13}
+\ProvidesExplPackage {siunitx} {2024-04-15} {3.3.14}
   {A comprehensive (SI) units package}
 %    \end{macrocode}
 %
diff --git a/Master/texmf-dist/tex/latex/siunitx/siunitx.sty b/Master/texmf-dist/tex/latex/siunitx/siunitx.sty
index f58f61ec131..a9268bddb2b 100644
--- a/Master/texmf-dist/tex/latex/siunitx/siunitx.sty
+++ b/Master/texmf-dist/tex/latex/siunitx/siunitx.sty
@@ -41,7 +41,7 @@
       }%
     \endinput
   }%
-\ProvidesExplPackage {siunitx} {2024-04-12} {3.3.13}
+\ProvidesExplPackage {siunitx} {2024-04-15} {3.3.14}
   {A comprehensive (SI) units package}
 \msg_new:nnnn { siunitx } { incompatible-package }
   { Package~'#1'~incompatible. }
@@ -286,11 +286,16 @@
           {#3} {#4} {#5} {#6} { #7 #1 }
       }
       {
-        \__siunitx_number_parse_combine_uncert:nnnnn
-          { #3 #1 } {#4} {#5} {#6} {#7}
+        \__siunitx_number_parse_combine_uncert:nnenn { #3 #1 } {#4}
+          {
+            \tl_map_tokens:nn {#5}
+              { \__siunitx_number_parse_combine_uncert_aux:nn {#1} }
+          }
+          {#6} {#7}
       }
   }
 \cs_generate_variant:Nn \__siunitx_number_parse_combine_uncert:nnnnnnn { e }
+\cs_new:Npn \__siunitx_number_parse_combine_uncert_aux:nn #1#2 { {#2#1} }
 \cs_new:Npn \__siunitx_number_parse_combine_uncert:nnnnn #1#2#3#4#5
   {
     \__siunitx_number_parse_combine_uncert_aux:eenn
@@ -308,6 +313,7 @@
        {#2}
        {#3}
   }
+\cs_generate_variant:Nn \__siunitx_number_parse_combine_uncert:nnnnn { nne }
 \cs_new:Npn \__siunitx_number_parse_combine_uncert_aux:nnnn #1#2#3#4
   {
     \__siunitx_number_parse_combine_uncert_loop:neennnn