From ca591bf4da2b3942ede0df1921b35e866359fc86 Mon Sep 17 00:00:00 2001
From: FFroehlich <fabian@schaluck.com>
Date: Wed, 3 Feb 2021 15:16:41 -0500
Subject: [PATCH 1/3] update value for MU, accept all steps that yield a
 decrease in function values

---
 fides/constants.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fides/constants.py b/fides/constants.py
index 4f673c6..a8e3e65 100644
--- a/fides/constants.py
+++ b/fides/constants.py
@@ -66,7 +66,7 @@ class StepBackStrategy(str, enum.Enum):
     Options.STEPBACK_STRAT: StepBackStrategy.REFLECT,
     Options.THETA_MAX: 0.95,
     Options.DELTA_INIT: 1.0,
-    Options.MU: 0.25,  # [NodedalWright2006]
+    Options.MU: 0.0,  # [NodedalWright2006]
     Options.ETA: 0.75,  # [NodedalWright2006]
     Options.GAMMA1: 1/4,  # [NodedalWright2006]
     Options.GAMMA2: 2,  # [NodedalWright2006]

From 7fb9312765d437488319e46b6db8b6b079142d01 Mon Sep 17 00:00:00 2001
From: FFroehlich <fabian@schaluck.com>
Date: Thu, 4 Feb 2021 22:21:48 -0500
Subject: [PATCH 2/3] revert mu change, change acceptance criteria

---
 fides/constants.py | 2 +-
 fides/minimize.py  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fides/constants.py b/fides/constants.py
index a8e3e65..4f673c6 100644
--- a/fides/constants.py
+++ b/fides/constants.py
@@ -66,7 +66,7 @@ class StepBackStrategy(str, enum.Enum):
     Options.STEPBACK_STRAT: StepBackStrategy.REFLECT,
     Options.THETA_MAX: 0.95,
     Options.DELTA_INIT: 1.0,
-    Options.MU: 0.0,  # [NodedalWright2006]
+    Options.MU: 0.25,  # [NodedalWright2006]
     Options.ETA: 0.75,  # [NodedalWright2006]
     Options.GAMMA1: 1/4,  # [NodedalWright2006]
     Options.GAMMA2: 2,  # [NodedalWright2006]
diff --git a/fides/minimize.py b/fides/minimize.py
index f1386cc..b8f8a4b 100644
--- a/fides/minimize.py
+++ b/fides/minimize.py
@@ -365,7 +365,7 @@ def update_tr_radius(self,
                     self.delta * self.get_option(Options.GAMMA1),
                     nsx / 4
                 ])
-            return self.tr_ratio >= self.get_option(Options.MU)
+            return self.tr_ratio > 0.0
 
     def check_convergence(self, fval, x, grad) -> None:
         """

From 82ff37193b273af1200b3581b994a97bddd8c14d Mon Sep 17 00:00:00 2001
From: FFroehlich <fabian@schaluck.com>
Date: Thu, 4 Feb 2021 22:22:25 -0500
Subject: [PATCH 3/3] version bump

---
 fides/version.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fides/version.py b/fides/version.py
index d31c31e..788da1f 100644
--- a/fides/version.py
+++ b/fides/version.py
@@ -1 +1 @@
-__version__ = "0.2.3"
+__version__ = "0.2.4"