Update docs on oldest supported browser versions.

These were changed in emscripten-core#23077 and emscripten-core#23118 but the docs were not updated.

Author: sbc100

site/source/docs/tools_reference/settings_reference.rst

@@ -2905,7 +2905,8 @@ are desired to work. Pass -sMIN_FIREFOX_VERSION=majorVersion to drop support
 for Firefox versions older than < majorVersion.
 Firefox 79 was released on 2020-07-28.
 MAX_INT (0x7FFFFFFF, or -1) specifies that target is not supported.
-Minimum supported value is 34 which was released on 2014-12-01.
+Minimum supported value is 40 which was released on 2015-09-11 (see
+feature_matrix.py)
 
 Default value: 79
 
@@ -2924,7 +2925,8 @@ NOTE: Emscripten is unable to produce code that would work in iOS 9.3.5 and
 older, i.e. iPhone 4s, iPad 2, iPad 3, iPad Mini 1, Pod Touch 5 and older,
 see https://github.com/emscripten-core/emscripten/pull/7191.
 MAX_INT (0x7FFFFFFF, or -1) specifies that target is not supported.
-Minimum supported value is 90000 which was released in 2015.
+Minimum supported value is 101000 which was released in 2016-09 (see
+feature_matrix.py).
 
 Default value: 140100
 
@@ -2939,7 +2941,8 @@ This setting also applies to modern Chromium-based Edge, which shares version
 numbers with Chrome.
 Chrome 85 was released on 2020-08-25.
 MAX_INT (0x7FFFFFFF, or -1) specifies that target is not supported.
-Minimum supported value is 33, which was released on 2014-02-18.
+Minimum supported value is 45, which was released on 2015-09-01 (see
+feature_matrix.py).
 
 Default value: 85
 

src/settings.js

@@ -1895,7 +1895,8 @@ var AUTO_NATIVE_LIBRARIES = true;
 // for Firefox versions older than < majorVersion.
 // Firefox 79 was released on 2020-07-28.
 // MAX_INT (0x7FFFFFFF, or -1) specifies that target is not supported.
-// Minimum supported value is 34 which was released on 2014-12-01.
+// Minimum supported value is 40 which was released on 2015-09-11 (see
+// feature_matrix.py)
 // [link]
 var MIN_FIREFOX_VERSION = 79;
 
@@ -1909,7 +1910,8 @@ var MIN_FIREFOX_VERSION = 79;
 // older, i.e. iPhone 4s, iPad 2, iPad 3, iPad Mini 1, Pod Touch 5 and older,
 // see https://github.com/emscripten-core/emscripten/pull/7191.
 // MAX_INT (0x7FFFFFFF, or -1) specifies that target is not supported.
-// Minimum supported value is 90000 which was released in 2015.
+// Minimum supported value is 101000 which was released in 2016-09 (see
+// feature_matrix.py).
 // [link]
 var MIN_SAFARI_VERSION = 140100;
 
@@ -1919,15 +1921,17 @@ var MIN_SAFARI_VERSION = 140100;
 // numbers with Chrome.
 // Chrome 85 was released on 2020-08-25.
 // MAX_INT (0x7FFFFFFF, or -1) specifies that target is not supported.
-// Minimum supported value is 33, which was released on 2014-02-18.
+// Minimum supported value is 45, which was released on 2015-09-01 (see
+// feature_matrix.py).
 // [link]
 var MIN_CHROME_VERSION = 85;
 
 // Specifies minimum node version to target for the generated code.  This is
 // distinct from the minimum version required run the emscripten compiler.
 // This version aligns with the current Ubuuntu TLS 20.04 (Focal).
 // Version is encoded in MMmmVV, e.g. 181401 denotes Node 18.14.01.
-// Minimum supported value is 101900, which was released 2020-02-05.
+// Minimum supported value is 101900, which was released 2020-02-05 (see
+// feature_matrix.py).
 var MIN_NODE_VERSION = 160000;
 
 // Whether we support setting errno from JS library code.