diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a0e7926..2a04d6f7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 * Rename change._tasks in C code, no user impact.
 * Replaced Docker images _(both tests and builds)_ with newer versions.
 * Removed `ti_pkg_check` hack for old compilers _(no longer required with recent compilers)_.
+* Added `INT_MIN` and `INT_MAX` fixed keywords with corresponding values.
 
 # v1.4.16
 
diff --git a/inc/ti/fn/fnnewbackup.h b/inc/ti/fn/fnnewbackup.h
index 3241ff73..f82161b7 100644
--- a/inc/ti/fn/fnnewbackup.h
+++ b/inc/ti/fn/fnnewbackup.h
@@ -28,6 +28,9 @@ static int do__f_new_backup(ti_query_t * query, cleri_node_t * nd, ex_t * e)
 
     if (!ti_raw_endswith(rname, tar_gz_str))
     {
+        /* The ti_backup_is_gcloud() function depends on a filename size of at
+         * least 5 characters, this ensures 7 characters;
+         */
         ex_set(e, EX_VALUE_ERROR,
             "expecting a backup file-name to end with `%.*s`"
             DOC_NEW_BACKUP, tar_gz_str->n, (char *) tar_gz_str->data);
diff --git a/inc/ti/forloop.h b/inc/ti/forloop.h
index 8b4218e3..f800c08f 100644
--- a/inc/ti/forloop.h
+++ b/inc/ti/forloop.h
@@ -39,7 +39,7 @@ typedef int (*ti_forloop_t) (
         cleri_node_t *,
         ex_t *);
 
-static ti_forloop_t ti_forloop_callbacks[21] = {
+static const ti_forloop_t ti_forloop_callbacks[21] = {
         ti_forloop_no_iter,         /* TI_VAL_NIL */
         ti_forloop_no_iter,         /* TI_VAL_INT */
         ti_forloop_no_iter,         /* TI_VAL_FLOAT */
diff --git a/inc/ti/val.t.h b/inc/ti/val.t.h
index 225b636a..1d2a3b9d 100644
--- a/inc/ti/val.t.h
+++ b/inc/ti/val.t.h
@@ -42,6 +42,7 @@
  * Both copy() and dup() use the following code to set the default deep value:
  *    !(type & 0x4);  THING/WRAP: 1 ARR/SET: 0
  * Be careful when changing the order in the enumerator.
+ * The ti_forloop_t also depends on the order in this enumerator;
  */
 typedef enum
 {
diff --git a/inc/ti/version.h b/inc/ti/version.h
index 34dc2f6c..00e9f6f7 100644
--- a/inc/ti/version.h
+++ b/inc/ti/version.h
@@ -25,7 +25,7 @@
  *  "-rc0"
  *  ""
  */
-#define TI_VERSION_PRE_RELEASE "-alpha4"
+#define TI_VERSION_PRE_RELEASE "-alpha5"
 
 #define TI_MAINTAINER \
     "Jeroen van der Heijden <jeroen@cesbit.com>"
diff --git a/main.c b/main.c
index 36d6f36c..525f4996 100644
--- a/main.c
+++ b/main.c
@@ -3,7 +3,7 @@
  *
  * author/maintainer : Jeroen van der Heijden <jeroen@cesbit.com>
  * home page         : https://thingsdb.net
- * copyright         : 2021, Jeroen van der Heijden
+ * copyright         : 2024, Jeroen van der Heijden
  *
  * This code will be release as open source but the exact license might be
  * changed to something else than MIT.
diff --git a/src/ti/backup.c b/src/ti/backup.c
index 61c65712..3c342be9 100644
--- a/src/ti/backup.c
+++ b/src/ti/backup.c
@@ -158,7 +158,10 @@ ti_val_t * ti_backup_as_mpval(ti_backup_t * backup)
 _Bool ti_backup_is_gcloud(ti_backup_t * backup)
 {
     char * s = backup->fn_template;
-
+    /*
+     * This check depends on the test that each backup file ends
+     * with ".tar.gz" and therefore must have a length of at least seven;
+     */
     return  s[0] == 'g' &&
             s[1] == 's' &&
             s[2] == ':' &&
diff --git a/src/ti/do.c b/src/ti/do.c
index f6a732e5..f68a575f 100644
--- a/src/ti/do.c
+++ b/src/ti/do.c
@@ -860,11 +860,11 @@ int ti_do_closure(ti_query_t * query, cleri_node_t * nd, ex_t * e)
 
 enum
 {
-    TOTAL_KEYWORDS = 13,
+    TOTAL_KEYWORDS = 15,
     MIN_WORD_LENGTH = 3,
     MAX_WORD_LENGTH = 8,
     MIN_HASH_VALUE = 3,
-    MAX_HASH_VALUE = 15
+    MAX_HASH_VALUE = 17
 };
 
 static inline unsigned int do__hash(
@@ -873,32 +873,32 @@ static inline unsigned int do__hash(
 {
     static unsigned char asso_values[] =
     {
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16,  1,  5,  1,  4,  0,
-         3,  1,  3,  0,  5, 16,  2, 16,  0,  1,
-        16,  0,  0,  0,  0,  0, 16,  0, 16,  0,
-        16, 16, 16, 16, 16,  3, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18,  2,  2,  2,  9,  0,
+         6,  1,  3,  0,  8, 18,  1,  0,  0,  1,
+        18,  0,  0,  0,  0,  0, 18,  0,  0,  0,
+        18, 18, 18, 18, 18,  0, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+        18, 18, 18, 18, 18, 18
     };
 
     register unsigned int hval = n;
@@ -937,7 +937,7 @@ static inline unsigned int do__hash(
 typedef struct
 {
     char name[MAX_WORD_LENGTH+1];
-    int value;
+    int64_t value;
     ti_val_t * val;
     size_t n;
 } do__fixed_t;
@@ -956,6 +956,8 @@ do__fixed_t do__fixed_mapping[TOTAL_KEYWORDS] = {
     {.name="ERROR",                 .value=LOGGER_ERROR},
     {.name="CRITICAL",              .value=LOGGER_CRITICAL},
     {.name="NO_IDS",                .value=TI_FLAGS_NO_IDS},
+    {.name="INT_MIN",               .value=LLONG_MIN},
+    {.name="INT_MAX",               .value=LLONG_MAX},
 };
 
 static do__fixed_t * do__fixed_map[MAX_HASH_VALUE+1];