Version 270.txr-270

* RELNOTES: Updated.

* configure (txr_ver): Bumped version.

* stdlib/ver.tl (lib-version): Bumped.

* txr.1: Bumped version and date.

4 files changed, 28 insertions, 5 deletions

diff --git a/RELNOTES b/RELNOTES
index e9bfe6f6..e83c83c1 100644
--- a/RELNOTES
+++ b/RELNOTES
@@ -1,3 +1,26 @@
+                                    TXR 270
+                                   2021-08-30
+
+
+  Features
+
+  - open-file now supports "x" mode for exclusive create, contributed
+    by Paul A. Patience.
+
+  Bugs
+
+  - sequence iteration:
+    - garbage collection corruption was discovered via experimentation
+      with string ranges (new feature in 269).
+      - caused by not properly doing the counter-generation object mutations.
+      - Bug is not new: affects bignum ranges, oop sequences.
+    - iterating ranges that go from fixnum to bignum now allowed.
+  - open-file:
+    - "+" mode was behaving like "r" and not "r+" (Paul A. Patience)
+    - "w+", "m+" and "a+" refused to create file (Paul A. Patience)
+
+
+
                                     TXR 269
                                    2021-08-28
 
diff --git a/configure b/configure
index 6052155e..a175c736 100755
--- a/configure
+++ b/configure
@@ -596,7 +596,7 @@ chmod a+x reconfigure
 #
 
 
-txr_ver=269
+txr_ver=270
 
 #
 # The all important banner.
diff --git a/stdlib/ver.tl b/stdlib/ver.tl
index 7864331d..f76b4bc7 100644
--- a/stdlib/ver.tl
+++ b/stdlib/ver.tl
@@ -1,2 +1,2 @@
-(defvarl lib-version 269)
+(defvarl lib-version 270)
 (defvarl *lib-version* lib-version)
diff --git a/txr.1 b/txr.1
index 85c03104..bace281a 100644
--- a/txr.1
+++ b/txr.1
@@ -430,9 +430,9 @@
 .ds TX \f[B]TXR\f[]
 .ds TL \f[B]TXR Lisp\f[]
 .\" Start of man page:
-.TH TXR 1 2021-08-26 "Utility Commands" "TXR Programming Language" "Kaz Kylheku"
+.TH TXR 1 2021-08-30 "Utility Commands" "TXR Programming Language" "Kaz Kylheku"
 .SH* NAME
-\*(TX \- Programming Language (Version 269)
+\*(TX \- Programming Language (Version 270)
 
 .SH* SYNOPSIS
 .mono
@@ -81007,7 +81007,7 @@ versions 2, 3, 4 and 5, regardless of minor version.
 Versions 252 through 259 produce version 6.0 files and load
 only version 6, regardless of minor version.
 
-Versions 260 through 269 produce version 7.0 files and load
+Versions 260 through 270 produce version 7.0 files and load
 versions 6 and 7, regardless of minor version.
 Version 261 introduces JSON
 .code #J