diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 836e6fd8bd..1811139a43 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-middlewareVersion = "v0.37.4"
+middlewareVersion = "v0.38.0"
 kotlinVersion = '2.0.21'
 kspVersion = "2.0.21-1.0.25"
 
diff --git a/protocol/src/main/proto/commands.proto b/protocol/src/main/proto/commands.proto
index 570d85fc0c..563c963bb1 100644
--- a/protocol/src/main/proto/commands.proto
+++ b/protocol/src/main/proto/commands.proto
@@ -2776,10 +2776,6 @@ message Rpc {
                 enum UseCase {
                     NONE = 0;
                     GET_STARTED = 1;
-                    PERSONAL_PROJECTS = 2;
-                    KNOWLEDGE_BASE = 3;
-                    NOTES_DIARY = 4;
-                    STRATEGIC_WRITING = 5;
                     EMPTY = 6;
                 }
             }
@@ -2826,6 +2822,29 @@ message Rpc {
                 }
             }
         }
+
+        message DateByTimestamp {
+            message Request {
+                string spaceId = 1;
+                int64 timestamp = 2;
+            }
+
+            message Response {
+                Error error = 1;
+                google.protobuf.Struct details = 2;
+
+                message Error {
+                    Code code = 1;
+                    string description = 2;
+
+                    enum Code {
+                        NULL = 0;
+                        UNKNOWN_ERROR = 1;
+                        BAD_INPUT = 2;
+                    }
+                }
+            }
+        }
     }
 
     message ObjectCollection {
diff --git a/protocol/src/main/proto/models.proto b/protocol/src/main/proto/models.proto
index b1cc771f06..0f6cc2c7bd 100644
--- a/protocol/src/main/proto/models.proto
+++ b/protocol/src/main/proto/models.proto
@@ -407,17 +407,18 @@ message Block {
                 enum FormulaType {
                     None				    = 0;
                     Count				    = 1;
-                    CountDistinct		= 2;
-                    CountEmpty			= 3;
-                    CountNotEmpty		= 4;
-                    PercentEmpty		= 5;
-                    PercentNotEmpty	= 6;
-                    MathSum				  = 7;
-                    MathAverage			= 8;
-                    MathMedian			= 9;
-                    MathMin				  = 10;
-                    MathMax				  = 11;
-                    Range				    = 12;
+                    CountValue      = 2;
+                    CountDistinct		= 3;
+                    CountEmpty			= 4;
+                    CountNotEmpty		= 5;
+                    PercentEmpty		= 6;
+                    PercentNotEmpty	= 7;
+                    MathSum				  = 8;
+                    MathAverage			= 9;
+                    MathMedian			= 10;
+                    MathMin				  = 11;
+                    MathMax				  = 12;
+                    Range				    = 13;
                 }
             }