diff --git a/config/_default/config.toml b/config/_default/config.toml
index 9cacd25c..8ecc3ecb 100644
--- a/config/_default/config.toml
+++ b/config/_default/config.toml
@@ -72,7 +72,7 @@ description = "Documentation for AxoSyslog, the scalable security data processor
   # The version number for the version of the docs represented in this doc set.
   # Used in the "version-banner" partial to display a version number for the 
   # current doc set.
-  version = "4.17.0"
+  version = "4.19.0"
   version_menu_canonicallinks = true
 
   # A link to latest version of the docs. Used in the "version-banner" partial to
@@ -172,11 +172,11 @@ description = "Documentation for AxoSyslog, the scalable security data processor
 [params.product]
 name = "AxoSyslog"
 abbrev = "AxoSyslog"
-version = "4.18"
+version = "4.19"
 # techversion includes patch version number, needed for install/image commands
 # configversion is needed in the config file examples
-techversion = "4.18.0"
-configversion = "4.18"
+techversion = "4.19.1"
+configversion = "4.19"
 syslog-ng = "syslog-ng"
 selinux = "SELinux"
 apparmor = "AppArmor"
diff --git a/content/chapter-sources/opentelemetry/_index.md b/content/chapter-sources/opentelemetry/_index.md
index 3fa199d9..017355c5 100644
--- a/content/chapter-sources/opentelemetry/_index.md
+++ b/content/chapter-sources/opentelemetry/_index.md
@@ -41,6 +41,8 @@ log otel_forward_mode_alts {
 
 The `opentelemetry()` source ignores this option and uses the address of the OTLP peer as the HOST.
 
+{{< include-headless "chunk/option-source-log-fetch-limit.md" >}}
+
 {{< include-headless "chunk/option-source-file-log-iw-size.md" >}}
 
 ## `port()` {#port}
diff --git a/content/chapter-sources/source-syslog-ng-otlp/_index.md b/content/chapter-sources/source-syslog-ng-otlp/_index.md
index d06637cd..86c32ef7 100644
--- a/content/chapter-sources/source-syslog-ng-otlp/_index.md
+++ b/content/chapter-sources/source-syslog-ng-otlp/_index.md
@@ -71,7 +71,9 @@ The `syslog-ng-otlp()` source ignores this option and uses the hostname from the
 
 {{< include-headless "chunk/option-source-keep-timestamp.md" >}}
 
-{{% include-headless "chunk/option-source-file-log-iw-size.md" %}}
+{{< include-headless "chunk/option-source-log-fetch-limit.md" >}}
+
+{{< include-headless "chunk/option-source-file-log-iw-size.md" >}}
 
 {{< include-headless "chunk/option-source-log-prefix.md" >}}
 
diff --git a/content/filterx/_index.md b/content/filterx/_index.md
index d7ba83b4..073c2af6 100644
--- a/content/filterx/_index.md
+++ b/content/filterx/_index.md
@@ -411,7 +411,8 @@ For details, see {{% xref "/filterx/operator-reference.md" %}}.
 FilterX has the following built-in functions.
 
 - [`cache_json_file`]({{< relref "/filterx/function-reference.md#cache-json-file" >}}): Loads an external JSON file to lookup contextual information.
-- [`dedup_metrics_labels`]({{< relref "/filterx/filterx-metrics/_index.md#metrics-labels" >}}): Deduplicate `metrics_labels` objects.
+- [`dedup_metrics_labels`]({{< relref "/filterx/filterx-metrics/_index.md#dedup-metrics-labels" >}}): Deduplicate `metrics_labels` objects.
+- [`dict_to_pairs`]({{< relref "/filterx/function-reference.md#dict-to-pairs" >}}): Convert dicts to list of pairs.
 - [`dpath`]({{< relref "/filterx/function-reference.md#dpath" >}}): Creates a nested path in a dictionary.
 - [`endswith`]({{< relref "/filterx/filterx-string-search/_index.md" >}}): Checks if a string ends with the specified value.
 - [`flatten`]({{< relref "/filterx/function-reference.md#flatten" >}}): Flattens the nested elements of an object.
diff --git a/content/filterx/function-reference.md b/content/filterx/function-reference.md
index c38476d2..a104312a 100644
--- a/content/filterx/function-reference.md
+++ b/content/filterx/function-reference.md
@@ -63,10 +63,32 @@ Usually, you use the [strptime](#strptime) FilterX function to create datetime v
 - When casting from a double, the double is the number of seconds elapsed since the UNIX epoch (00:00:00 UTC on 1 January 1970). (The part before the floating points is the seconds, the part after the floating point is the microseconds.)
 - When casting from a string, the string (for example, `1701350398.123000+01:00`) is interpreted as: `<the number of seconds elapsed since the UNIX epoch>.<microseconds>+<timezone relative to UTC (GMT +00:00)>`
 
-## dedup_metrics_labels
+## dedup_metrics_labels {#dedup-metrics-labels}
 
 Deduplicate `metrics_labels` objects. For details, see {{% xref "/filterx/filterx-metrics/_index.md#metrics-labels" %}}.
 
+## dict_to_pairs {#dict-to-pairs}
+
+Convert dicts to list of pairs.
+
+Usage: `dict_to_pairs(<input-dict>, <key-name>, <value-name>)`
+
+```shell
+my_dict = {
+    "key_1": "value_1",
+    "key_2": "value_2",
+    "key_3": ["value_3", "value_4"],
+};
+
+my_list = dict_to_pairs(my_dict, "key", "value");
+# The value of my_list will be:
+# [
+#   {"key":"key_1","value":"value_1"},
+#   {"key":"key_2","value":"value_2"},
+#   {"key":"key_3","value":["value_3","value_4"]}
+# ]
+```
+
 ## dpath
 
 Available in {{< product >}} 4.17 and later.
diff --git a/content/whats-new/_index.md b/content/whats-new/_index.md
index 62e487d9..a28df3d1 100644
--- a/content/whats-new/_index.md
+++ b/content/whats-new/_index.md
@@ -6,6 +6,10 @@ weight: 10
 
 {{< include-headless "banner-new-to-axosyslog.md" >}}
 
+## Version 4.19 (2025-10-15)
+
+- The [`dict_to_pairs`]({{< relref "/filterx/function-reference.md#dict-to-pairs" >}}) FilterX function can convert a dictionary to a list of pairs.
+
 ## Version 4.18 (2025-09-30)
 
 - You can now use macros and templates in the [`headers()` option]({{< relref "/chapter-destinations/configuring-destinations-http-nonjava/reference-destination-http-nonjava/_index.md#headers" >}}) of the `http()` destination to set the headers dynamically.