The release notes for FreeBSD 11.4-RELEASE contain a summary of the changes made to the FreeBSD base system on the 11.4-STABLE development line. This document lists applicable security advisories that were issued since the last release, as well as significant changes to the FreeBSD kernel and userland. Some brief remarks on upgrading are also. May 25, 2021 11.4 also fixes excessive ssd writes. PSA: The SSD disk write issues have been fixed in 11.4 which came out today. The person who found the issue in first place says it was a result of a kernel. - With righteousness shall he judge the poor (comp. Isaiah 32:1, 'A king shall reign in righteousness').It would be characteristic of the Messiah's rule that the poor should be eared for, that oppression should cease, and judgment be no more perverted in favor of the rich.
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The following functionality has been added in Direct3D 11.4.
Also see Where is the DirectX SDK?.
Direct3D device removal
The RegisterDeviceRemovedEvent, and UnregisterDeviceRemoved methods are supported by a new interface, ID3D11Device4, to support receiving an asynchronous event notification when a Direct3D device has been removed.
Multithreaded protection
To ensure that graphics commands in particular are executed in a specific order, the ID3D11Multithread interface has methods to turn multithread protection on and off, and methods to enter and leave critical code requiring this protection.
Patch 11.4
Fences for multi-device synchronization and interop with Direct3D 12
The ID3D11Fence, ID3D11Device5 and ID3D11DeviceContext4 provide the same fence functionality as Direct3D 12 for Direct3D 11. Fences are used to synchronize multiple Direct3D11 devices, and for interop between Direct3D 11 and Direct3D 12. Fences are supported in the Windows 10 Creators Update.
Extended NV12 texture support
NV12 textures with capture and video encode capabilities now support sharing. Older D3D11 texture flags for video encode and capture are deprecated for NV12, as it will be set all the time for new drivers. Such textures can be shared not only with D3D11, but also with D3D12. In D3D12, no new flags represent these texture capabilities.
Refer to the boolean setting in D3D11_FEATURE_DATA_D3D11_OPTIONS4.
Shader Caching
Drivers may support OS-managed shader caching of Direct3D11 applications in the Windows 10 Creators update.
Related topics
Chapter 4
Section 4.16 Lightbulb Moment
1. A potential side effect of nicotine is the activation of the sympathetic nervous system that causes an increased heart rate. Nausea and weakness are potential side effects that can indicate nicotine overdose. The nurse should provide education to the patient regarding the avoidance of additional nicotine when using the nicotine patch. It may also be helpful to remove the patch at bedtime and reapply a new patch in the morning.
You can review additional information about nicotine administration in the “Nicotine” section.
2.a. The nurse should explain to the patient that tamsulosin relaxes muscles in the bladder and prostate to improve urine flow.
2.b. The nurse should monitor for hypotension and tachycardia, especially after administering the first dose of medication. The nurse should also advise the patient to change positions slowly in order to prevent falls that can occur due to hypotension.
You can review additional information about tamsulosin in the “Alpha-1 Antagonists” section.
11.4 Meiosis
3.a. Albuterol stimulates Beta-2 agonist receptors in the smooth muscle of bronchi and bronchioles to produce bronchodilation to ease the work of breathing.
3.b. Beta-1 receptors can also be inadvertently stimulated by albuterol and causes the side effect of tachycardia.
3.c. The nurse should educate the patient to take the medication as prescribed and avoid caffeine or other stimulants that can cause tachycardia.
You can review additional information about albuterol in the “Beta-2 Agonists” section.
4.a. Propranolol is a nonselective beta-blocker and inhibits both Beta-1 and Beta-2 receptors. Inhibiting Beta-1 receptors will decrease the heart rate and reduce the force of the heart’s contraction, which will lower the patient’s blood pressure.
4.b. Before administering propranolol, the nurse should always assess the patient’s blood pressure and apical pulse. If the systolic blood pressure is less than 100 mm Hg or the apical heart rate is less than 60 beats per minute, the medication should be withheld and the provider notified unless other parameters are provided in the order.
4.c. Propranolol can inadvertently cause bronchoconstriction because it inhibits Beta-2 receptors in addition to Beta-1 receptors. Bronchocontriction causes wheezing.
4.d. When a nurse notices new wheezing, a focused respiratory assessment should be performed including assessing the patient’s airway, respiratory rate, and oxygenation status. Depending on the urgency of the assessment findings, the nurse should also check the patient’s medical record for a history of asthma or chronic obstructive pulmonary disease (COPD) and immediately notify the provider.
You can review additional information about propranolol in the “Beta-2 Antagonists” section.
5.a. Before administering metoprolol, the nurse should always assess the patient’s blood pressure and pulse.
5.b. If the systolic blood pressure is less than 100 mm Hg or the apical heart rate is less than 60 beats per minute, the medication should be withheld and the provider notified unless other parameters are provided in the order.
5.c. A new finding of edema can indicate that the adverse effect of worsening heart failure is occurring.
5.d. The nurse should assess the patient for additional signs of worsening heart failure, such as fine crackles in the lungs and recent weight gain, and notify the provider regarding this change in patient condition.
You can review additional information about metoprolol in the “Beta-1 Antagonists” section.
6.a. Dobutamine is a catecholamine and it will increase heart rate, the force of heart contraction, and speed of conduction between the SA to AV nodes. These actions will help to improve cardiac output for a patient experiencing an acute episode of heart failure.
6.b. During administration of dobutamine, the nurse should continuously monitor the patient’s heart rate, blood pressure, ECG, cardiac output, and urine output. Increased urine output will demonstrate the effectiveness of the medication in perfusing the kidneys.
Big Sur 11.4
You can review additional information about dobutamine in the “Alpha and Beta Receptor Agonists (Catecholamines)” section.