diff --git a/docs/pyslow5_api/pyslow5.md b/docs/pyslow5_api/pyslow5.md
index 016e2fc..196dd7d 100644
--- a/docs/pyslow5_api/pyslow5.md
+++ b/docs/pyslow5_api/pyslow5.md
@@ -139,6 +139,7 @@ Compression Options:
 `sig_press`:
 - "none"
 - "svb-zd" [default]
+- "ex-zd" [best compression]
 
 Example:
 
@@ -337,7 +338,7 @@ print(end_reason_labels)
 
 > ['unknown', 'partial', 'mux_change', 'unblock_mux_change', 'signal_positive', 'signal_negative']
 # or from newer datsets
-> ["unknown", "mux_change", "unblock_mux_change", "data_service_unblock_mux_change", "signal_positive", "signal_negative"]
+> ["unknown", "mux_change", "unblock_mux_change", "data_service_unblock_mux_change", "signal_positive", "signal_negative", "api_request", "device_data_error"]
 
 readID = "r1"
 read = s5.get_read(readID, aux='all')
diff --git a/python/README.md b/python/README.md
index 016e2fc..196dd7d 100644
--- a/python/README.md
+++ b/python/README.md
@@ -139,6 +139,7 @@ Compression Options:
 `sig_press`:
 - "none"
 - "svb-zd" [default]
+- "ex-zd" [best compression]
 
 Example:
 
@@ -337,7 +338,7 @@ print(end_reason_labels)
 
 > ['unknown', 'partial', 'mux_change', 'unblock_mux_change', 'signal_positive', 'signal_negative']
 # or from newer datsets
-> ["unknown", "mux_change", "unblock_mux_change", "data_service_unblock_mux_change", "signal_positive", "signal_negative"]
+> ["unknown", "mux_change", "unblock_mux_change", "data_service_unblock_mux_change", "signal_positive", "signal_negative", "api_request", "device_data_error"]
 
 readID = "r1"
 read = s5.get_read(readID, aux='all')