diff --git a/.travis.yml b/.travis.yml
index 18ec909e..c1996d01 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@
 # (the "License"); you may not use this file except in compliance with
 # the License.  You may obtain a copy of the License at
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+#      http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ -28,9 +28,9 @@ services:
   - docker
 # required to support multi-stage build
 addons:
-   apt:
-     packages:
-       - docker-ce
+  apt:
+    packages:
+      - docker-ce
 
 before_install:
   - "./tools/travis/setup.sh"
@@ -39,13 +39,28 @@ script:
   - "./tools/travis/build.sh && ./tools/travis/test.sh"
 deploy:
   - provider: script
-    script: "./tools/travis/publish.sh nimbella 3 ${TRAVIS_TAG} && ./tools/travis/publish.sh nimbella 3-ai ${TRAVIS_TAG} && ./tools/travis/publish.sh nimbella 39 ${TRAVIS_TAG}"
+    script: "./tools/travis/publish.sh nimbella 3 ${TRAVIS_TAG} && ./tools/travis/publish.sh nimbella 3-ai ${TRAVIS_TAG} && ./tools/travis/publish.sh nimbella 39 ${TRAVIS_TAG} && ./tools/travis/publish.sh nimbella 311 ${TRAVIS_TAG}"
     on:
       tags: true
       all_branches: true
       repo: nimbella-corp/openwhisk-runtime-python
   - provider: script
-    script: "./tools/travis/publish.sh nimbella 3 nightly && ./tools/travis/publish.sh nimbella 3-ai nightly && ./tools/travis/publish.sh nimbella 39 nightly"
+    script: "./tools/travis/publish.sh nimbella 3 nightly && ./tools/travis/publish.sh nimbella 3-ai nightly && ./tools/travis/publish.sh nimbella 39 nightly && ./tools/travis/publish.sh nimbella 311 nightly"
     on:
       branch: dev
       repo: nimbella-corp/openwhisk-runtime-python
+env:
+  global:
+    - secure: "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"
+    - secure: "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"
+
+notifications:
+  slack:
+    secure: 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
+    on_pull_requests: false
+    on_success: change
+    on_failure: always
+  webhooks:
+    urls:
+      # travis2slack webhook to enable DMs on openwhisk-team.slack.com to PR authors with TravisCI results
+      secure: "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"
diff --git a/build.gradle b/build.gradle
index 4ebd4b8c..efdfee41 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,14 +17,17 @@
 
 buildscript {
     repositories {
-        jcenter()
+        mavenCentral()
+        gradlePluginPortal()
     }
     dependencies {
-        classpath "cz.alenkacz:gradle-scalafmt:${gradle.scalafmt.version}"
+        classpath "cz.alenkacz.gradle.scalafmt:cz.alenkacz.gradle.scalafmt.gradle.plugin:${gradle.scalafmt.version}"
     }
 }
 
 subprojects {
-    apply plugin: 'scalafmt'
-    scalafmt.configFilePath = gradle.scalafmt.config
+    plugins.withId('scala') {
+        apply plugin: 'cz.alenkacz.gradle.scalafmt'
+        scalafmt.configFilePath = gradle.scalafmt.config
+    }
 }
diff --git a/core/python311Action/Dockerfile b/core/python311Action/Dockerfile
index 0d1bffd4..02ac65dd 100644
--- a/core/python311Action/Dockerfile
+++ b/core/python311Action/Dockerfile
@@ -15,50 +15,92 @@
 # limitations under the License.
 #
 
-# build go proxy from source
+# STAGE 1: Build Go Proxy from source
 ARG GO_PROXY_BASE_IMAGE=golang:1.20
-FROM $GO_PROXY_BASE_IMAGE AS builder
-ARG GO_PROXY_GITHUB_USER=nimbella-corp
-ARG GO_PROXY_GITHUB_BRANCH=dev
+FROM $GO_PROXY_BASE_IMAGE AS proxy-builder
+ARG GO_PROXY_GITHUB_USER=nimbella
+ARG GO_PROXY_GITHUB_BRANCH=master
 RUN git clone --branch ${GO_PROXY_GITHUB_BRANCH} https://github.com/${GO_PROXY_GITHUB_USER}/openwhisk-runtime-go /src \
   && cd /src \
   && env GO111MODULE=on CGO_ENABLED=0 go build -o /bin/proxy main/proxy.go
 
-FROM python:3.11-slim-bullseye
+# STAGE 2: Build Python Wheels (Heavy Build Environment)
+# This stage installs Rust, Bun, and C compilers needed only for building Daft.
+FROM python:3.11-slim-bullseye AS python-builder
+
+# Install system dependencies for building native extensions
+RUN apt-get -o Acquire::Retries=3 update && apt-get -o Acquire::Retries=3 install -y --no-install-recommends \
+    git \
+    curl \
+    build-essential \
+    python3-dev \
+    libssl-dev \
+    pkg-config \
+    unzip \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Rust toolchain (required for Daft engine)
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+ENV PATH="/root/.cargo/bin:${PATH}"
+
+# Install Bun (required specifically for Daft Dashboard release builds)
+RUN curl -fsSL https://bun.sh/install | bash
+ENV PATH="/root/.bun/bin:${PATH}"
+
+WORKDIR /build
+COPY requirements.txt .
+
+# MODIFIED: Install build-time dependencies and use --no-build-isolation.
+# Disabling build isolation forces pip to use the Rust/Bun toolchains we installed above,
+# cutting hours off the build time and preventing redundant toolchain downloads.
+RUN pip install --no-cache-dir maturin pyarrow>=8.0.0 \
+    && pip wheel --no-cache-dir --no-build-isolation --wheel-dir /wheels git+https://github.com/Eventual-Inc/Daft.git@v0.4.8
 
-# select the builder to use
+# STAGE 3: Final Production Image (Slim)
+FROM python:3.11-slim-bullseye
 ARG GO_PROXY_BUILD_FROM=release
 
-# Install common modules for python
+# Runtime dependencies only
+RUN apt-get -o Acquire::Retries=3 update && apt-get -o Acquire::Retries=3 install -y --no-install-recommends \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy built artifacts from earlier stages
+COPY --from=proxy-builder /bin/proxy /bin/proxy
+COPY --from=python-builder /wheels /wheels
+
+# Install the pre-compiled Daft wheel
+RUN pip install --no-cache-dir /wheels/*.whl && rm -rf /wheels
+
+# MODIFIED: Filter requirements.txt to remove the 'daft' Git line.
+# This prevents pip from looking for 'git' in this slim stage,
+# as daft is already provided by the wheel installed in the previous step.
 COPY requirements.txt requirements.txt
-RUN pip install --no-cache-dir -r requirements.txt
+RUN grep -v "daft @" requirements.txt > requirements_slim.txt \
+    && pip install --no-cache-dir -r requirements_slim.txt \
+    && rm requirements_slim.txt
 
-# install the functions-deployer
+# Install the functions-deployer
 ARG DEPLOYER_DOWNLOAD
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
-RUN apt-get update \
-  && apt-get install -y --no-install-recommends curl \
-  && curl -L ${DEPLOYER_DOWNLOAD} | tar xzf - \
+RUN curl -L ${DEPLOYER_DOWNLOAD} | tar xzf - \
   && rm -fr /usr/local/lib/dosls && mv dosls /usr/local/lib \
-  && rm -f /usr/local/bin/dosls && ln -s /usr/local/lib/dosls/bootstrap /usr/local/bin/dosls \
-  && rm -rf /var/lib/apt/lists/*
+  && rm -f /usr/local/bin/dosls && ln -s /usr/local/lib/dosls/bootstrap /usr/local/bin/dosls
 
+# Runtime ActionLoop environment setup
 RUN mkdir -p /action
 WORKDIR /
 COPY bin/compile /bin/compile
 COPY lib/launcher.py /lib/launcher.py
 COPY lib/prelauncher.py /lib/prelauncher.py
 
+# OpenWhisk standard environment variables
 # log initialization errors
 ENV OW_LOG_INIT_ERROR=1
 # the launcher must wait for an ack
 ENV OW_WAIT_FOR_ACK=1
-# using the runtime name to identify the execution environment
-#ENV OW_EXECUTION_ENV=openwhisk/action-python-v3.9
 # compiler script
 ENV OW_COMPILER=/bin/compile
-
 ENV OW_INIT_IN_ACTIONLOOP=/lib/prelauncher.py
 
-COPY --from=builder /bin/proxy /bin/proxy
 ENTRYPOINT ["/bin/proxy"]
diff --git a/gradle/docker.gradle b/gradle/docker.gradle
index 790c1e10..451f9714 100644
--- a/gradle/docker.gradle
+++ b/gradle/docker.gradle
@@ -54,8 +54,16 @@ if(project.hasProperty('dockerHost')) {
 }
 
 if(project.hasProperty('dockerBuildArgs')) {
-    dockerBuildArgs.split(' ').each { arg  ->
-        dockerBuildArg += ['--build-arg', arg]
+    // Split the string into a list of individual arguments
+    def argsList = project.dockerBuildArgs.split(' ')
+    argsList.each { arg ->
+        if (arg.startsWith('--')) {
+            // It's a flag (like --no-cache), add it directly
+            dockerBuildArg += [arg]
+        } else {
+            // It's a variable (like KEY=VAL), add the prefix
+            dockerBuildArg += ['--build-arg', arg]
+        }
     }
 }
 
diff --git a/settings.gradle b/settings.gradle
index c21b676c..5e6a8118 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -36,7 +36,7 @@ gradle.ext.scala = [
 ]
 
 gradle.ext.scalafmt = [
-    version: '1.5.0',
+    version: '1.16.2',
     config: new File(rootProject.projectDir, '.scalafmt.conf')
 ]